diff --git a/cfg/std.cfg b/cfg/std.cfg
index e0a76e0a6..861ade3d9 100644
--- a/cfg/std.cfg
+++ b/cfg/std.cfg
@@ -4690,7 +4690,8 @@ The obsolete function 'gets' is called. With 'gets' you'll get a buffer overrun
     </arg>
   </function>
   <!-- errno_t strcat_s(char *restrict dest, rsize_t destsz, const char *restrict src); // since C11-->
-  <function name="strcat_s">
+  <!-- errno_t wcscat_s(wchar_t *restrict dest, rsize_t destsz, const wchar_t *restrict src); // since C11-->
+  <function name="strcat_s,wcscat_s">
     <returnValue type="errno_t"/>
     <noreturn>false</noreturn>
     <leak-ignore/>
diff --git a/cfg/windows.cfg b/cfg/windows.cfg
index 38beaa743..56fb37c5c 100644
--- a/cfg/windows.cfg
+++ b/cfg/windows.cfg
@@ -5309,7 +5309,7 @@ HFONT CreateFont(
     </arg>
   </function>
   <!-- errno_t _mbscat_s(unsigned char *strDestination, size_t numberOfElements, const unsigned char *strSource ); -->
-  <function name="_mbscat_s">
+  <function name="_mbscat_s,_tcscat_s">
     <returnValue type="errno_t"/>
     <noreturn>false</noreturn>
     <leak-ignore/>
diff --git a/test/cfg/std.c b/test/cfg/std.c
index 464e27a73..7d249f3bd 100644
--- a/test/cfg/std.c
+++ b/test/cfg/std.c
@@ -3026,7 +3026,8 @@ void uninitvar_strncat(char *Ct, char *S, size_t N)
     (void)strncat(Ct,S,N);
 }
 
-void uninitvar_strcat_s(char *Ct, size_t N, char *S)
+// errno_t strcat_s(char *restrict dest, rsize_t destsz, const char *restrict src); // since C11
+errno_t uninitvar_strcat_s(char *Ct, size_t N, char *S)
 {
     char *ct;
     char *s;
@@ -3041,7 +3042,26 @@ void uninitvar_strcat_s(char *Ct, size_t N, char *S)
     (void)strcat_s(Ct,n,S);
 
     // no warning is expected for
-    (void)strcat_s(Ct,N,S);
+    return strcat_s(Ct,N,S);
+}
+
+// errno_t wcscat_s(wchar_t *restrict dest, rsize_t destsz, const wchar_t *restrict src); // since C11
+errno_t uninitvar_wcscat_s(wchar_t *Ct, rsize_t N, wchar_t *S)
+{
+    wchar_t *ct;
+    wchar_t *s;
+    rsize_t n;
+    // cppcheck-suppress uninitvar
+    (void)wcscat_s(ct,n,s);
+    // cppcheck-suppress uninitvar
+    (void)wcscat_s(ct,N,S);
+    // cppcheck-suppress uninitvar
+    (void)wcscat_s(Ct,N,s);
+    // cppcheck-suppress uninitvar
+    (void)wcscat_s(Ct,n,S);
+
+    // no warning is expected for
+    return wcscat_s(Ct,N,S);
 }
 
 void uninitvar_strncat_s(char *Ct, size_t N1, char *S, size_t N2)