diff --git a/dlls/msvcr80/msvcr80.spec b/dlls/msvcr80/msvcr80.spec
index 65506fbca5e..e21da6cbe5b 100644
--- a/dlls/msvcr80/msvcr80.spec
+++ b/dlls/msvcr80/msvcr80.spec
@@ -976,7 +976,7 @@
 @ stub _swprintf_p_l
 @ stub _swprintf_s_l
 @ varargs _swscanf_l(wstr wstr ptr) msvcrt._swscanf_l
-@ stub _swscanf_s_l
+@ varargs _swscanf_s_l(wstr wstr ptr) msvcrt._swscanf_s_l
 @ extern _sys_errlist msvcrt._sys_errlist
 @ extern _sys_nerr msvcrt._sys_nerr
 @ cdecl _tell(long) msvcrt._tell
@@ -1402,7 +1402,7 @@
 @ cdecl strxfrm(ptr str long) msvcrt.strxfrm
 @ varargs swprintf_s(ptr long wstr) msvcrt.swprintf_s
 @ varargs swscanf(wstr wstr) msvcrt.swscanf
-@ stub swscanf_s
+@ varargs swscanf_s(wstr wstr) msvcrt.swscanf_s
 @ cdecl system(str) msvcrt.system
 @ cdecl tan(double) msvcrt.tan
 @ cdecl tanh(double) msvcrt.tanh
diff --git a/dlls/msvcr90/msvcr90.spec b/dlls/msvcr90/msvcr90.spec
index 0e6c62ee548..ad8537866e3 100644
--- a/dlls/msvcr90/msvcr90.spec
+++ b/dlls/msvcr90/msvcr90.spec
@@ -963,7 +963,7 @@
 @ stub _swprintf_p_l
 @ stub _swprintf_s_l
 @ varargs _swscanf_l(wstr wstr ptr) msvcrt._swscanf_l
-@ stub _swscanf_s_l
+@ varargs _swscanf_s_l(wstr wstr ptr) msvcrt._swscanf_s_l
 @ extern _sys_errlist msvcrt._sys_errlist
 @ extern _sys_nerr msvcrt._sys_nerr
 @ cdecl _tell(long) msvcrt._tell
@@ -1386,7 +1386,7 @@
 @ cdecl strxfrm(ptr str long) msvcrt.strxfrm
 @ varargs swprintf_s(ptr long wstr) msvcrt.swprintf_s
 @ varargs swscanf(wstr wstr) msvcrt.swscanf
-@ stub swscanf_s
+@ varargs swscanf_s(wstr wstr) msvcrt.swscanf_s
 @ cdecl system(str) msvcrt.system
 @ cdecl tan(double) msvcrt.tan
 @ cdecl tanh(double) msvcrt.tanh
diff --git a/dlls/msvcrt/msvcrt.spec b/dlls/msvcrt/msvcrt.spec
index a5705ac9c81..9b6689857de 100644
--- a/dlls/msvcrt/msvcrt.spec
+++ b/dlls/msvcrt/msvcrt.spec
@@ -911,7 +911,7 @@
 # stub _swprintf_p_l
 # stub _swprintf_s_l
 @ varargs _swscanf_l(wstr wstr ptr) MSVCRT__swscanf_l
-# stub _swscanf_s_l
+@ varargs _swscanf_s_l(wstr wstr ptr) MSVCRT__swscanf_s_l
 @ extern _sys_errlist MSVCRT__sys_errlist
 @ extern _sys_nerr MSVCRT__sys_nerr
 @ cdecl _tell(long) MSVCRT__tell
@@ -1338,7 +1338,7 @@
 @ varargs swprintf(ptr wstr) MSVCRT_swprintf
 @ varargs swprintf_s(ptr long wstr) MSVCRT_swprintf_s
 @ varargs swscanf(wstr wstr) MSVCRT_swscanf
-# stub swscanf_s
+@ varargs swscanf_s(wstr wstr) MSVCRT_swscanf_s
 @ cdecl system(str) MSVCRT_system
 @ cdecl tan(double) MSVCRT_tan
 @ cdecl tanh(double) MSVCRT_tanh
diff --git a/dlls/msvcrt/scanf.c b/dlls/msvcrt/scanf.c
index c9d5c56f954..cfb4aa0e89d 100644
--- a/dlls/msvcrt/scanf.c
+++ b/dlls/msvcrt/scanf.c
@@ -98,6 +98,10 @@ static int wchar2digit(MSVCRT_wchar_t c, int base) {
 #undef SECURE
 #include "scanf.h"
 
+/* vswscanf_s_l */
+#define SECURE 1
+#include "scanf.h"
+
 /* vcscanf_l */
 #undef WIDE_SCANF
 #define CONSOLE 1
@@ -423,6 +427,35 @@ int CDECL MSVCRT__swscanf_l(const MSVCRT_wchar_t *str, const MSVCRT_wchar_t *for
     return res;
 }
 
+/*********************************************************************
+ *		swscanf_s (MSVCRT.@)
+ */
+int CDECL MSVCRT_swscanf_s(const MSVCRT_wchar_t *str, const MSVCRT_wchar_t *format, ...)
+{
+    __ms_va_list valist;
+    int res;
+
+    __ms_va_start(valist, format);
+    res = MSVCRT_vswscanf_s_l(str, format, NULL, valist);
+    __ms_va_end(valist);
+    return res;
+}
+
+/*********************************************************************
+ *		_swscanf_s_l (MSVCRT.@)
+ */
+int CDECL MSVCRT__swscanf_s_l(const MSVCRT_wchar_t *str, const MSVCRT_wchar_t *format,
+        MSVCRT__locale_t locale, ...)
+{
+    __ms_va_list valist;
+    int res;
+
+    __ms_va_start(valist, locale);
+    res = MSVCRT_vswscanf_s_l(str, format, locale, valist);
+    __ms_va_end(valist);
+    return res;
+}
+
 /*********************************************************************
  *		_cscanf (MSVCRT.@)
  */