diff --git a/cfg/windows.cfg b/cfg/windows.cfg
index b00b4133d..c968bd8b2 100644
--- a/cfg/windows.cfg
+++ b/cfg/windows.cfg
@@ -2646,4 +2646,14 @@ HFONT CreateFont(
       <not-uninit/>
     </arg>
   </function>
+  <!-- int _mkdir(const char *dirname);
+       int _wmkdir(const wchar_t *dirname); -->
+  <function name="_mkdir,_wmkdir">
+    <noreturn>false</noreturn>
+    <leak-ignore/>
+    <arg nr="1">
+      <not-null/>
+      <not-uninit/>
+    </arg>
+  </function>
 </def>