diff --git a/src/osdep/signals.c b/src/osdep/signals.c
index 72bc31cc..7de1213a 100644
--- a/src/osdep/signals.c
+++ b/src/osdep/signals.c
@@ -73,7 +73,7 @@ sig_tstp(struct terminal *term)
 #ifdef SIGSTOP
 	pid_t pid = getpid();
 
-	block_itrm(0);
+	block_itrm();
 #if defined (SIGCONT) && defined(SIGTTOU)
 	if (!fork()) {
 		sleep(1);
@@ -95,7 +95,7 @@ sig_tstp(struct terminal *term)
 static void
 sig_cont(struct terminal *term)
 {
-	if (!unblock_itrm(0)) resize_terminal();
+	if (!unblock_itrm()) resize_terminal();
 }
 #endif
 
diff --git a/src/terminal/kbd.c b/src/terminal/kbd.c
index eb6e1ae6..16be876b 100644
--- a/src/terminal/kbd.c
+++ b/src/terminal/kbd.c
@@ -350,13 +350,13 @@ unblock_itrm_x(void *h)
 {
 	close_handle(h);
 	if (!ditrm) return;
-	unblock_itrm(0);
+	unblock_itrm();
 	resize_terminal();
 }
 
 
 int
-unblock_itrm(int fd)
+unblock_itrm(void)
 {
 	if (!ditrm) return -1;
 
@@ -375,7 +375,7 @@ unblock_itrm(int fd)
 
 
 void
-block_itrm(int fd)
+block_itrm(void)
 {
 	if (!ditrm) return;
 
@@ -591,7 +591,7 @@ has_nul_byte:
 		memcpy(param + 1, path.source, path_len + 1);
 		memcpy(param + 1 + path_len + 1, delete.source, del_len + 1);
 
-		if (fg == 1) block_itrm(itrm->in.ctl);
+		if (fg == 1) block_itrm();
 
 		blockh = start_thread((void (*)(void *, int)) exec_thread,
 				      param, param_len);
@@ -599,7 +599,7 @@ has_nul_byte:
 
 		if (blockh == -1) {
 			if (fg == 1)
-				unblock_itrm(itrm->in.ctl);
+				unblock_itrm();
 
 			goto nasty_thing;
 		}
diff --git a/src/terminal/kbd.h b/src/terminal/kbd.h
index 89d352b2..f5b6d879 100644
--- a/src/terminal/kbd.h
+++ b/src/terminal/kbd.h
@@ -118,8 +118,8 @@ handle_trm(int std_in, int std_out, int sock_in, int sock_out, int ctl_in,
 	   void *init_string, int init_len, int remote);
 
 void itrm_queue_event(struct itrm *itrm, unsigned char *data, int len);
-void block_itrm(int);
-int unblock_itrm(int);
+void block_itrm(void);
+int unblock_itrm(void);
 void free_all_itrms(void);
 void resize_terminal(void);
 void dispatch_special(unsigned char *);
diff --git a/src/terminal/terminal.c b/src/terminal/terminal.c
index ccbe30ef..b106f9ec 100644
--- a/src/terminal/terminal.c
+++ b/src/terminal/terminal.c
@@ -200,7 +200,7 @@ unblock_terminal(struct terminal *term)
 	term->blocked = -1;
 	set_handlers(term->fdin, (select_handler_T) in_term, NULL,
 		     (select_handler_T) destroy_terminal, term);
-	unblock_itrm(term->fdin);
+	unblock_itrm();
 	redraw_terminal_cls(term);
 	if (textarea_editor)	/* XXX */
 		textarea_edit(1, NULL, NULL, NULL, NULL);
@@ -223,13 +223,13 @@ exec_on_master_terminal(struct terminal *term,
 	memcpy(param + 1, path, plen + 1);
 	memcpy(param + 1 + plen + 1, delete, dlen + 1);
 
-	if (fg == 1) block_itrm(term->fdin);
+	if (fg == 1) block_itrm();
 
 	blockh = start_thread((void (*)(void *, int)) exec_thread,
 			      param, param_size);
 	fmem_free(param);
 	if (blockh == -1) {
-		if (fg == 1) unblock_itrm(term->fdin);
+		if (fg == 1) unblock_itrm();
 		return;
 	}