diff --git a/libs/filesystem/jswrap_fs.c b/libs/filesystem/jswrap_fs.c
index a1fe6fd16..7eb1e9655 100755
--- a/libs/filesystem/jswrap_fs.c
+++ b/libs/filesystem/jswrap_fs.c
@@ -510,7 +510,7 @@ bool jswrap_fs_mkfs() {
   }
   return jsfsInit();
 #else
-  jsExceptionHere("fs.mkfs not implemented on Linux");
+  jsExceptionHere(JSET_ERROR, "fs.mkfs not implemented on Linux");
   return false;
 #endif