diff --git a/package-debian.sh b/package-debian.sh
index de009e05..d4c70974 100644
--- a/package-debian.sh
+++ b/package-debian.sh
@@ -571,6 +571,11 @@ fi
 exit 0
 EOF
 
+  # Normalize permissions
+  find "$STAGE/opt/v2rayN" -type d -exec chmod 0755 {} +
+  find "$STAGE/opt/v2rayN" -type f -exec chmod 0644 {} +
+  [[ -f "$STAGE/opt/v2rayN/v2rayN" ]] && chmod 0755 "$STAGE/opt/v2rayN/v2rayN" || true
+  
   local deb_out
   deb_out="$OUTPUT_DIR/v2rayn_${VERSION}_${deb_arch}.deb"