diff --git a/build.sh b/build.sh
index 034f02d..687308e 100755
--- a/build.sh
+++ b/build.sh
@@ -19,8 +19,8 @@ if [ -n "$NO_CLEAN_UP" ]; then
 fi&&
 flatpak-builder $3 --arch "$2" --install-deps-from=winebarrels --install-deps-only "$BUILD_DIR" "$1" &&
 if [ -z "$4" ]; then
-    BUILD_DIR= exec flatpak-builder $3 --arch "$2" --sandbox --rebuild-on-sdk-change "$BUILD_DIR" "$1"
+    BUILD_DIR= exec flatpak-builder $3 --arch "$2" --sandbox --rebuild-on-sdk-change --bundle-sources "$BUILD_DIR" "$1"
 else
     HASH="$("$(dirname "$0")/hash_modules.py" --installed "$1" "$2" | sed -n '1p')" || exit 0 &&
-    BUILD_DIR= exec flatpak-builder $3 --arch "$2" --sandbox --rebuild-on-sdk-change --repo "$4" -s "WB_HASH='${HASH}'" "$BUILD_DIR" "$1"
-fi
\ No newline at end of file
+    BUILD_DIR= exec flatpak-builder $3 --arch "$2" --sandbox --rebuild-on-sdk-change --bundle-sources --repo "$4" -s "WB_HASH='${HASH}'" "$BUILD_DIR" "$1"
+fi