diff --git a/src/exch.c b/src/exch.c
index 19ff2d0..caf814d 100644
--- a/src/exch.c
+++ b/src/exch.c
@@ -412,7 +412,7 @@ void visit_bank (void)
 	    mkchstr(chbuf, BUFSIZE, attr_normal, attr_normal | A_BOLD, 0, 1,
 		    getmaxx(curwin) / 2, &width_cursym, 1, "^{%s^}",
 		    lconvinfo.currency_symbol);
-	    chbuf_cursym = chstrdup(chbuf);
+	    chbuf_cursym = xchstrdup(chbuf);
 
 	    mkchstr(chbuf, BUFSIZE, attr_normal, 0, 0, 1, getmaxx(curwin)
 		    - BANK_INPUT_COLS - width_cursym - 6, &width, 1,
@@ -470,7 +470,7 @@ void visit_bank (void)
 	    mkchstr(chbuf, BUFSIZE, attr_normal, attr_normal | A_BOLD, 0, 1,
 		    getmaxx(curwin) / 2, &width_cursym, 1, "^{%s^}",
 		    lconvinfo.currency_symbol);
-	    chbuf_cursym = chstrdup(chbuf);
+	    chbuf_cursym = xchstrdup(chbuf);
 
 	    mkchstr(chbuf, BUFSIZE, attr_normal, 0, 0, 1, getmaxx(curwin)
 		    - BANK_INPUT_COLS - width_cursym - 6, &width, 1,
diff --git a/src/intf.c b/src/intf.c
index 46cc3e8..cab54de 100644
--- a/src/intf.c
+++ b/src/intf.c
@@ -1391,28 +1391,6 @@ error:
 }
 
 
-/***********************************************************************/
-// chstrdup: Duplicate a chtype buffer
-
-chtype *chstrdup (const chtype *restrict chstr)
-{
-    const chtype *p;
-    int len;
-    chtype *ret;
-
-
-    // Determine chstr length, including ending NUL
-    for (len = 1, p = chstr; *p != '\0'; p++, len++)
-	;
-
-    ret = xmalloc(len * sizeof(chtype));
-    memcpy(ret, chstr, len * sizeof(chtype));
-    ret[len - 1] = '\0';	// Terminating NUL, just in case not present
-
-    return ret;
-}
-
-
 /***********************************************************************/
 // leftch: Print strings in chstr left-aligned
 
diff --git a/src/intf.h b/src/intf.h
index 9fcb017..8a27e0c 100644
--- a/src/intf.h
+++ b/src/intf.h
@@ -408,19 +408,6 @@ extern int vmkchstr (chtype *restrict chbuf, int chbufsize, chtype attr_norm,
 		     const char *restrict format, va_list args);
 
 
-/*
-  Function:   chstrdup  - Duplicate a chtype string
-  Parameters: chstr     - String to duplicate
-  Returns:    chtype *  - Pointer to new (duplicated) string
-
-  This function returns a new string of type chtype * that contains a
-  copy of the string in chstr.  No errors are returned: if sufficient
-  memory is not available, the program terminates with an "Out of memory"
-  message.
-*/
-extern chtype *chstrdup (const chtype *restrict chstr);
-
-
 /*
   Function:   leftch   - Print strings in chstr left-aligned
   Parameters: win      - Window to use (should be curwin)
diff --git a/src/move.c b/src/move.c
index 353d73c..8382773 100644
--- a/src/move.c
+++ b/src/move.c
@@ -788,11 +788,11 @@ void merge_companies (map_val_t a, map_val_t b)
 
     mkchstr(chbuf, BUFSIZE, attr_highlight, 0, 0, 1, getmaxx(curwin) / 2,
 	    &width_aa, 1, "%s", company[aa].name);
-    chbuf_aa = chstrdup(chbuf);
+    chbuf_aa = xchstrdup(chbuf);
 
     mkchstr(chbuf, BUFSIZE, attr_highlight, 0, 0, 1, getmaxx(curwin) / 2,
 	    &width_bb, 1, "%s", company[bb].name);
-    chbuf_bb = chstrdup(chbuf);
+    chbuf_bb = xchstrdup(chbuf);
 
     mkchstr(chbuf, BUFSIZE, attr_normal, 0, 0, 1, getmaxx(curwin) / 2,
 	    &width, 1,
@@ -1032,7 +1032,7 @@ void adjust_values (void)
 
 		mkchstr(chbuf, BUFSIZE, attr_error_highlight, 0, 0, 1, w / 2,
 			&width_amt, 1, "%N", company[which].share_price);
-		chbuf_amt = chstrdup(chbuf);
+		chbuf_amt = xchstrdup(chbuf);
 
 		mkchstr(chbuf, BUFSIZE, attr_error_normal, 0, 0, 1, w / 2,
 			&width, 1,
diff --git a/src/utils.c b/src/utils.c
index 3d9cfd5..c2a1dfd 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -487,6 +487,28 @@ char *xstrdup (const char *str)
 }
 
 
+/***********************************************************************/
+// chstrdup: Duplicate a chtype buffer
+
+chtype *xchstrdup (const chtype *restrict chstr)
+{
+    const chtype *p;
+    int len;
+    chtype *ret;
+
+
+    // Determine chstr length, including ending NUL
+    for (len = 1, p = chstr; *p != '\0'; p++, len++)
+	;
+
+    ret = xmalloc(len * sizeof(chtype));
+    memcpy(ret, chstr, len * sizeof(chtype));
+    ret[len - 1] = '\0';	// Terminating NUL, just in case not present
+
+    return ret;
+}
+
+
 /***********************************************************************/
 // xwcsdup: Duplicate a wide-character string, with checking
 
diff --git a/src/utils.h b/src/utils.h
index 6d0079f..7f7ada8 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -331,6 +331,19 @@ extern void *xmalloc (size_t size);
 extern char *xstrdup (const char *str);
 
 
+/*
+  Function:   xchstrdup - Duplicate a chtype string
+  Parameters: chstr     - String to duplicate
+  Returns:    chtype *  - Pointer to new (duplicated) string
+
+  This function returns a new string of type chtype * that contains a
+  copy of the string in chstr.  No errors are returned: if sufficient
+  memory is not available, the program terminates with an "Out of memory"
+  message.
+*/
+extern chtype *xchstrdup (const chtype *restrict chstr);
+
+
 /*
   Function:   xwcsdup   - Duplicate a wide-character string, with checking
   Parameters: str       - String to duplicate