diff --git a/packaging/linux/flatpak/org.legoisland.Isle.json b/packaging/linux/flatpak/org.legoisland.Isle.json
index 178434fa..229ba424 100644
--- a/packaging/linux/flatpak/org.legoisland.Isle.json
+++ b/packaging/linux/flatpak/org.legoisland.Isle.json
@@ -55,6 +55,11 @@
                     "path": "../../../miniwin",
                     "dest": "miniwin/"
                 },
+                {
+                    "type": "dir",
+                    "path": "../../../extensions",
+                    "dest": "extensions/"
+                },
                 {
                     "type": "dir",
                     "path": "../../../packaging",