diff --git a/tools/esmify/mach_commands.py b/tools/esmify/mach_commands.py
index a6e8881bc3..311bd82922 100644
--- a/tools/esmify/mach_commands.py
+++ b/tools/esmify/mach_commands.py
@@ -150,7 +150,7 @@ class HgUtils(VCSUtils):
                 continue
             jss.append(js)
 
-        cmd = ["hg", "files", f"set:glob:{path}/**/*.sys.mjs"]
+        cmd = ["hg", "files", f"set:glob:{path}/**/*.mjs"]
         for line in self.run(cmd):
             js = pathlib.Path(line)
             if is_excluded_from_imports(js) or is_excluded_from_convert(js):