diff --git a/src/w32-util.c b/src/w32-util.c
index 9d42139e..21de6dcf 100644
--- a/src/w32-util.c
+++ b/src/w32-util.c
@@ -390,7 +390,7 @@ find_program_in_dir (const char *dir, const char *name)
 {
   char *result;
 
-  result = _gpgme_strconcat (dir, "\\", strlen (name), NULL);
+  result = _gpgme_strconcat (dir, "\\", name, NULL);
   if (!result)
     return NULL;