diff --git a/cfg/windows.cfg b/cfg/windows.cfg
index 14cd0ae86..f7dec705b 100644
--- a/cfg/windows.cfg
+++ b/cfg/windows.cfg
@@ -4907,15 +4907,54 @@ HFONT CreateFont(
       <not-bool/>
     </arg>
   </function>
-  <!--LPTSTR WINAPI lstrcat(
-  _Inout_ LPTSTR lpString1,
-  _In_    LPTSTR lpString2);-->
+  <!--LPTSTR WINAPI lstrcat( _Inout_ LPTSTR lpString1, _In_ LPTSTR lpString2);-->
   <!-- TODO: When implemented use minsize for argument 1 to verify that the
   buffer is at least "(strlen(arg1)+strlen(arg2)+1)*sizeof(TCHAR)" bytes in size.-->
   <function name="lstrcat">
     <returnValue type="LPTSTR"/>
     <noreturn>false</noreturn>
     <leak-ignore/>
+    <not-overlapping-data ptr1-arg="1" ptr2-arg="2" strlen-arg="2"/>
+    <warn severity="style" alternatives="StringCchCat">Due to security concerns it is not recommended to use this function, see MSDN for details.</warn>
+    <arg nr="1" direction="inout">
+      <not-null/>
+      <not-uninit/>
+      <strz/>
+    </arg>
+    <arg nr="2" direction="in">
+      <not-null/>
+      <not-uninit/>
+      <strz/>
+    </arg>
+  </function>
+  <!--LPSTR lstrcatA(LPSTR lpString1, LPCSTR lpString2);-->
+  <!-- TODO: When implemented use minsize for argument 1 to verify that the
+  buffer is at least "(strlen(arg1)+strlen(arg2)+1)*sizeof(TCHAR)" bytes in size.-->
+  <function name="lstrcatA">
+    <returnValue type="LPSTR"/>
+    <noreturn>false</noreturn>
+    <leak-ignore/>
+    <not-overlapping-data ptr1-arg="1" ptr2-arg="2" strlen-arg="2"/>
+    <warn severity="style" alternatives="StringCchCat">Due to security concerns it is not recommended to use this function, see MSDN for details.</warn>
+    <arg nr="1" direction="inout">
+      <not-null/>
+      <not-uninit/>
+      <strz/>
+    </arg>
+    <arg nr="2" direction="in">
+      <not-null/>
+      <not-uninit/>
+      <strz/>
+    </arg>
+  </function>
+  <!--LPWSTR lstrcatW( _Inout_ LPWSTR lpString1, _In_ LPCWSTR lpString2);-->
+  <!-- TODO: When implemented use minsize for argument 1 to verify that the
+  buffer is at least "(strlen(arg1)+strlen(arg2)+1)*sizeof(TCHAR)" bytes in size.-->
+  <function name="lstrcatW">
+    <returnValue type="LPWSTR"/>
+    <noreturn>false</noreturn>
+    <leak-ignore/>
+    <not-overlapping-data ptr1-arg="1" ptr2-arg="2" strlen-arg="2"/>
     <warn severity="style" alternatives="StringCchCat">Due to security concerns it is not recommended to use this function, see MSDN for details.</warn>
     <arg nr="1" direction="inout">
       <not-null/>