diff --git a/project/common.mk b/project/common.mk
index 74865eb..8a01a41 100644
--- a/project/common.mk
+++ b/project/common.mk
@@ -14,6 +14,7 @@ API_SRCS = \
 	src/u16_wcpcpy.c \
 	src/u16_wcpncpy.c \
 	src/u16_wcsdup.c \
+	src/u16_wcscat.c \
 
 INTERNAL_SRCS = \
 
diff --git a/src/u16_wcscat.c b/src/u16_wcscat.c
new file mode 100644
index 0000000..e735fdf
--- /dev/null
+++ b/src/u16_wcscat.c
@@ -0,0 +1,14 @@
+/*******************************************************************/
+/*  u16ports: u16 variants of wide character string functions.     */
+/*  Copyright (C) 2017  Z. Gilboa                                  */
+/*  Released under the Standard MIT License; see COPYING.U16PORTS. */
+/*******************************************************************/
+
+#include <stdint.h>
+#include <u16ports/u16ports.h>
+
+uint16_t * u16_wcscat(uint16_t * dst, const uint16_t * src)
+{
+	u16_wcscpy(dst + u16_wcslen(dst),src);
+	return dst;
+}