diff --git a/xmalloc.c b/xmalloc.c
index c90b97dc..a9a6685c 100644
--- a/xmalloc.c
+++ b/xmalloc.c
@@ -4,6 +4,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <wchar.h>
 #include <syslog.h>
 #include "xmalloc.h"
 
@@ -54,6 +55,12 @@ xstrdup(const char *str)
     return check_alloc(strdup(str));
 }
 
+wchar_t *
+xwcsdup(const wchar_t *str)
+{
+    return check_alloc(wcsdup(str));
+}
+
 char *
 xstrndup(const char *str, size_t n)
 {
diff --git a/xmalloc.h b/xmalloc.h
index 2c12cf0a..13d69ca4 100644
--- a/xmalloc.h
+++ b/xmalloc.h
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <stddef.h>
+#include <wchar.h>
 #include "macros.h"
 
 void *xmalloc(size_t size) XMALLOC;
@@ -9,3 +10,4 @@ void *xrealloc(void *ptr, size_t size);
 char *xstrdup(const char *str) XSTRDUP;
 char *xstrndup(const char *str, size_t n) XSTRDUP;
 char *xasprintf(const char *format, ...) PRINTF(1) XMALLOC;
+wchar_t *xwcsdup(const wchar_t *str) XSTRDUP;