diff --git a/reactos/tools/widl/widl.c b/reactos/tools/widl/widl.c
index c6c4a1cd84c..399d3cbaee2 100644
--- a/reactos/tools/widl/widl.c
+++ b/reactos/tools/widl/widl.c
@@ -327,7 +327,12 @@ int main(int argc,char *argv[])
   }
 
   if(do_header) {
-    header_token = make_token(header_name);
+    if (strrchr(header_name, '\\'))
+        header_token = make_token(strrchr(header_name, '\\') + 1);
+    else if (strrchr(header_name, '/'))
+        header_token = make_token(strrchr(header_name, '/') + 1);
+    else
+        header_token = make_token(header_name);
 
     if(!(header = fopen(header_name, "w"))) {
       fprintf(stderr, "Could not open %s for output\n", header_name);