diff --git a/src/bfu/menu.c b/src/bfu/menu.c
index 1b25f1cf..a7e1fb06 100644
--- a/src/bfu/menu.c
+++ b/src/bfu/menu.c
@@ -1146,7 +1146,7 @@ mainmenu_handler(struct window *win, struct term_event *ev)
 
 /* For dynamic menus the last (cleared) item is used to mark the end. */
 #define realloc_menu_items(mi_, size) \
-	mem_align_alloc(mi_, size, (size) + 2, struct menu_item, 0xF)
+	mem_align_alloc(mi_, size, (size) + 2, 0xF)
 
 struct menu_item *
 new_menu(enum menu_item_flags flags)
diff --git a/src/bfu/text.c b/src/bfu/text.c
index 63f00f4d..e4e9d438 100644
--- a/src/bfu/text.c
+++ b/src/bfu/text.c
@@ -83,7 +83,7 @@ split_line(unsigned char *text, int max_width)
 #undef is_unsplitable
 
 #define LINES_GRANULARITY 0x7
-#define realloc_lines(x, o, n) mem_align_alloc(x, o, n, unsigned char *, LINES_GRANULARITY)
+#define realloc_lines(x, o, n) mem_align_alloc(x, o, n, LINES_GRANULARITY)
 
 /* Find the start of each line with the current max width */
 static unsigned char **
diff --git a/src/document/docdata.h b/src/document/docdata.h
index f898db3c..1606966f 100644
--- a/src/document/docdata.h
+++ b/src/document/docdata.h
@@ -8,12 +8,12 @@
 #define LINE_GRANULARITY	0x0F
 #define LINK_GRANULARITY	0x7F
 
-#define ALIGN_LINES(x, o, n) mem_align_alloc(x, o, n, struct line, LINES_GRANULARITY)
-#define ALIGN_LINE(x, o, n) mem_align_alloc(x, o, n, struct screen_char, LINE_GRANULARITY)
-#define ALIGN_LINK(x, o, n) mem_align_alloc(x, o, n, struct link, LINK_GRANULARITY)
+#define ALIGN_LINES(x, o, n) mem_align_alloc(x, o, n, LINES_GRANULARITY)
+#define ALIGN_LINE(x, o, n) mem_align_alloc(x, o, n, LINE_GRANULARITY)
+#define ALIGN_LINK(x, o, n) mem_align_alloc(x, o, n, LINK_GRANULARITY)
 
 #define realloc_points(link, size) \
-	mem_align_alloc(&(link)->points, (link)->npoints, size, struct point, 0)
+	mem_align_alloc(&(link)->points, (link)->npoints, size, 0)
 
 struct line *realloc_lines(struct document *document, int y);
 
diff --git a/src/document/html/parser/forms.c b/src/document/html/parser/forms.c
index 6e63f96d..dc2ddbfa 100644
--- a/src/document/html/parser/forms.c
+++ b/src/document/html/parser/forms.c
@@ -424,7 +424,7 @@ abort:
 				preselect = order;
 			value = get_attr_val(t_attr, "value", html_context->options);
 
-			if (!mem_align_alloc(&values, order, order + 1, unsigned char *, 0xFF))
+			if (!mem_align_alloc(&values, order, order + 1, 0xFF))
 				goto abort;
 
 			values[order++] = value;
diff --git a/src/document/html/parser/parse.c b/src/document/html/parser/parse.c
index 0fafd047..92243327 100644
--- a/src/document/html/parser/parse.c
+++ b/src/document/html/parser/parse.c
@@ -126,7 +126,7 @@ end:
 }
 
 
-#define realloc_chrs(x, l) mem_align_alloc(x, l, (l) + 1, unsigned char, 0xFF)
+#define realloc_chrs(x, l) mem_align_alloc(x, l, (l) + 1, 0xFF)
 
 #define add_chr(s, l, c)						\
 	do {								\
diff --git a/src/document/html/parser/table.c b/src/document/html/parser/table.c
index 1275cfb2..00e1a460 100644
--- a/src/document/html/parser/table.c
+++ b/src/document/html/parser/table.c
@@ -31,7 +31,7 @@
 #define INIT_REAL_ROWS		2
 
 #define realloc_bad_html(bad_html, size) \
-	mem_align_alloc(bad_html, size, (size) + 1, struct html_start_end, 0xFF)
+	mem_align_alloc(bad_html, size, (size) + 1, 0xFF)
 
 static void
 add_table_bad_html_start(struct table *table, unsigned char *start)
diff --git a/src/document/html/renderer.c b/src/document/html/renderer.c
index 7ec24e72..63915faf 100644
--- a/src/document/html/renderer.c
+++ b/src/document/html/renderer.c
@@ -134,7 +134,7 @@ void put_chars(struct html_context *, unsigned char *, int);
 
 #define SPACES_GRANULARITY	0x7F
 
-#define ALIGN_SPACES(x, o, n) mem_align_alloc(x, o, n, unsigned char, SPACES_GRANULARITY)
+#define ALIGN_SPACES(x, o, n) mem_align_alloc(x, o, n, SPACES_GRANULARITY)
 
 static inline void
 set_screen_char_color(struct screen_char *schar,
diff --git a/src/dom/stack.c b/src/dom/stack.c
index 5546757d..4b750454 100644
--- a/src/dom/stack.c
+++ b/src/dom/stack.c
@@ -24,7 +24,6 @@ static inline struct dom_stack_state *
 realloc_dom_stack_states(struct dom_stack_state **states, size_t size)
 {
 	return mem_align_alloc(states, size, size + 1,
-			       struct dom_stack_state,
 			       DOM_STACK_STATE_GRANULARITY);
 }
 
@@ -32,7 +31,6 @@ static inline struct dom_stack_state *
 realloc_dom_stack_context(struct dom_stack_context ***contexts, size_t size)
 {
 	return mem_align_alloc(contexts, size, size + 1,
-			       struct dom_stack_context *,
 			       DOM_STACK_STATE_GRANULARITY);
 }
 
diff --git a/src/main/event.c b/src/main/event.c
index 5b8bab76..27f63bfa 100644
--- a/src/main/event.c
+++ b/src/main/event.c
@@ -65,7 +65,7 @@ static struct hash *event_hash = NULL;
 #define EVENT_GRANULARITY 0x07
 
 #define realloc_events(ptr, size) \
-	mem_align_alloc(ptr, (size), (size) + 1, struct event, EVENT_GRANULARITY)
+	mem_align_alloc(ptr, (size), (size) + 1, EVENT_GRANULARITY)
 
 static inline int
 invalid_event_id(register int id)
diff --git a/src/protocol/uri.c b/src/protocol/uri.c
index 45dae8c2..c42723e2 100644
--- a/src/protocol/uri.c
+++ b/src/protocol/uri.c
@@ -1406,7 +1406,7 @@ decode_uri_string_for_display(struct string *string)
 
 #define realloc_uri_list(list) \
 	mem_align_alloc(&(list)->uris, (list)->size, (list)->size + 1, \
-			struct uri *, URI_LIST_GRANULARITY)
+			URI_LIST_GRANULARITY)
 
 struct uri *
 add_to_uri_list(struct uri_list *list, struct uri *uri)
diff --git a/src/util/memory.h b/src/util/memory.h
index 2864408b..87cf2cc4 100644
--- a/src/util/memory.h
+++ b/src/util/memory.h
@@ -152,11 +152,11 @@ mem_align_alloc__(
 }
 
 #ifdef DEBUG_MEMLEAK
-#define mem_align_alloc(ptr, old, new, obj, mask) \
-	mem_align_alloc__(__FILE__, __LINE__, (void **) ptr, old, new, sizeof(obj), mask)
+#define mem_align_alloc(ptr, old, new, mask) \
+	mem_align_alloc__(__FILE__, __LINE__, (void **) ptr, old, new, sizeof(**ptr), mask)
 #else
-#define mem_align_alloc(ptr, old, new, obj, mask) \
-	mem_align_alloc__((void **) ptr, old, new, sizeof(obj), mask)
+#define mem_align_alloc(ptr, old, new, mask) \
+	mem_align_alloc__((void **) ptr, old, new, sizeof(**ptr), mask)
 #endif
 
 
diff --git a/src/util/string.h b/src/util/string.h
index 7390061c..1b069efd 100644
--- a/src/util/string.h
+++ b/src/util/string.h
@@ -184,7 +184,7 @@ squeezastring(struct string *string)
 
 #define realloc_string(str, size) \
 	mem_align_alloc(&(str)->source, (str)->length, (size) + 1, \
-			unsigned char, STRING_GRANULARITY)
+			STRING_GRANULARITY)
 
 #ifdef DEBUG_MEMLEAK
 
diff --git a/src/viewer/text/form.c b/src/viewer/text/form.c
index 1ffd2d08..90b809f1 100644
--- a/src/viewer/text/form.c
+++ b/src/viewer/text/form.c
@@ -206,8 +206,7 @@ find_form_state(struct document_view *doc_view, struct form_control *fc)
 	if (n >= vs->form_info_len) {
 		int nn = n + 1;
 
-		fs = mem_align_alloc(&vs->form_info, vs->form_info_len, nn,
-		                     struct form_state, 0);
+		fs = mem_align_alloc(&vs->form_info, vs->form_info_len, nn, 0);
 		if (!fs) return NULL;
 		vs->form_info = fs;
 		vs->form_info_len = nn;
@@ -629,7 +628,7 @@ encode_controls(struct list_head *l, struct string *data,
 
 #define BOUNDARY_LENGTH	32
 #define realloc_bound_ptrs(bptrs, bptrs_size) \
-	mem_align_alloc(bptrs, bptrs_size, bptrs_size + 1, int, 0xFF)
+	mem_align_alloc(bptrs, bptrs_size, bptrs_size + 1, 0xFF)
 
 struct boundary_info {
 	int count;
diff --git a/src/viewer/text/search.c b/src/viewer/text/search.c
index 53716882..022e9369 100644
--- a/src/viewer/text/search.c
+++ b/src/viewer/text/search.c
@@ -539,7 +539,7 @@ is_in_range(struct document *document, int y, int height,
 }
 
 #define realloc_points(pts, size) \
-	mem_align_alloc(pts, size, (size) + 1, struct point, 0xFF)
+	mem_align_alloc(pts, size, (size) + 1, 0xFF)
 
 static void
 get_searched_plain(struct document_view *doc_view, struct point **pt, int *pl,
diff --git a/src/viewer/text/textarea.c b/src/viewer/text/textarea.c
index f8e66ded..6d5b512e 100644
--- a/src/viewer/text/textarea.c
+++ b/src/viewer/text/textarea.c
@@ -45,7 +45,7 @@ struct line_info {
 /* We add two extra entries to the table so the ending info can be added
  * without reallocating. */
 #define realloc_line_info(info, size) \
-	mem_align_alloc(info, size, (size) + 3, struct line_info, 0xFF)
+	mem_align_alloc(info, size, (size) + 3, 0xFF)
 
 /* Allocates a line_info table describing the layout of the textarea buffer.
  *