diff --git a/res/job.py b/res/job.py
index a76b6b5cb..e53105fd3 100755
--- a/res/job.py
+++ b/res/job.py
@@ -205,11 +205,13 @@ def sign_files(dir_path, only_ext=None):
             if not only_ext[i].startswith("."):
                 only_ext[i] = "." + only_ext[i]
     for root, dirs, files in os.walk(dir_path):
-        if "RustDeskPrinterDriver" in root or "usbmmidd_v2" in root:
-            continue
+        is_signed_dir = "RustDeskPrinterDriver" in root or "usbmmidd_v2" in root
         for file in files:
             file_path = os.path.join(root, file)
             _, ext = os.path.splitext(file_path)
+            # only sign the exe files in signed dirs
+            if is_signed_dir and ext not in [".exe"]:
+                continue
             if only_ext and ext not in only_ext:
                 continue
             if ext in SIGN_EXTENSIONS: