diff --git a/build.sh b/build.sh
index 62f2494..37138ed 100755
--- a/build.sh
+++ b/build.sh
@@ -20,5 +20,11 @@ if [ -z "$4" ]; then
     BUILD_DIR= exec flatpak-builder $3 --arch "$2" --sandbox --rebuild-on-sdk-change "$BUILD_DIR" "$1"
 else
     HASH="$("$CONFIG_DIR/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" "$1"
+    if [ -z "$DELETE_CACHE" ]
+    then
+        BUILD_DIR= exec flatpak-builder $3 --arch "$2" --sandbox --rebuild-on-sdk-change --repo "$4" -s "WB_HASH='${HASH}'" "$BUILD_DIR" "$1"
+    else
+        BUILD_DIR= flatpak-builder $3 --arch "$2" --sandbox --rebuild-on-sdk-change --repo "$4" -s "WB_HASH='${HASH}'" "$BUILD_DIR" "$1" &&
+        find .flatpak-builder/cache -delete
+    fi
 fi
\ No newline at end of file