diff --git a/project/common.mk b/project/common.mk
index ecf55c3..49fdcae 100644
--- a/project/common.mk
+++ b/project/common.mk
@@ -1,5 +1,6 @@
 API_SRCS = \
 	src/u16_mbsinit.c \
+	src/u16_mbrtowc.c \
 
 INTERNAL_SRCS = \
 
diff --git a/src/u16_mbrtowc.c b/src/u16_mbrtowc.c
new file mode 100644
index 0000000..9a83554
--- /dev/null
+++ b/src/u16_mbrtowc.c
@@ -0,0 +1,16 @@
+/*******************************************************************/
+/*  u16ports: u16 variants of wide character string functions.     */
+/*  Copyright (C) 2017  Z. Gilboa                                  */
+/*  Released under the Standard MIT License; see COPYING.U16PORTS. */
+/*******************************************************************/
+
+#include <wchar.h>
+#include <uchar.h>
+#include <u16ports/u16ports.h>
+
+static mbstate_t internal_state = {0};
+
+size_t u16_mbrtowc(uint16_t * dst, const char * src, size_t len, mbstate_t * ps)
+{
+	return mbrtoc16(dst,src,len, ps ? ps : &internal_state);
+}