diff --git a/build-tools/stx/build-pkgs b/build-tools/stx/build-pkgs
index fc73c2bc..8d644746 100755
--- a/build-tools/stx/build-pkgs
+++ b/build-tools/stx/build-pkgs
@@ -1339,7 +1339,7 @@ class BuildController():
             stamp_dir = os.path.join(os.environ.get('MY_WORKSPACE'), build_type, 'stamp')
             os.makedirs(stamp_dir, exist_ok=True)
             dsc_stamp = '.'.join([os.path.basename(dsc_file), checksum, state])
-            os.mknod(os.path.join(stamp_dir, dsc_stamp))
+            os.mknod(os.path.join(stamp_dir, dsc_stamp), 0o666)
         except Exception as e:
             logger.error(str(e))
             logger.error("Failed to create stamp(%s) for %s", state, pkg_dir)
diff --git a/build-tools/stx/debrepack.py b/build-tools/stx/debrepack.py
index b7fc7ac0..c4fb5707 100755
--- a/build-tools/stx/debrepack.py
+++ b/build-tools/stx/debrepack.py
@@ -602,7 +602,7 @@ class Parser():
         series_file = os.path.join(self.pkginfo["srcdir"], "debian/patches/series")
         if not os.path.isdir(patches_folder):
             os.mkdir(patches_folder)
-            os.mknod(series_file)
+            os.mknod(series_file, 0o666)
 
         pwd = os.getcwd()
         os.chdir(self.pkginfo["srcdir"])