diff --git a/lnbits/app.py b/lnbits/app.py
index c48ea3e2..3f8b1525 100644
--- a/lnbits/app.py
+++ b/lnbits/app.py
@@ -211,7 +211,7 @@ def register_ext_routes(app: FastAPI, ext: Extension) -> None:
 
     logger.trace(f"adding route for extension {ext_module}")
 
-    prefix = f"/upgrades/{ext.hash}" if ext.hash != "" else ""
+    prefix = f"/upgrades/{ext.upgrade_hash}" if ext.upgrade_hash != "" else ""
     app.include_router(router=ext_route, prefix=prefix)
 
 
diff --git a/lnbits/core/views/api.py b/lnbits/core/views/api.py
index 818be296..e28cdd3c 100644
--- a/lnbits/core/views/api.py
+++ b/lnbits/core/views/api.py
@@ -756,14 +756,15 @@ async def api_install_extension(
         # mount routes for the new version
         core_app_extra.register_new_ext_routes(extension)
 
-        if ext_info.module_installed:
+        if extension.upgrade_hash:
             ext_info.nofiy_upgrade()
 
     except Exception as ex:
         logger.warning(ex)
         ext_info.clean_extension_files()
         raise HTTPException(
-            status_code=HTTPStatus.INTERNAL_SERVER_ERROR, detail="Failed to install extension."
+            status_code=HTTPStatus.INTERNAL_SERVER_ERROR,
+            detail="Failed to install extension.",
         )
 
 
diff --git a/lnbits/extension_manager.py b/lnbits/extension_manager.py
index cea31551..f5b1dd32 100644
--- a/lnbits/extension_manager.py
+++ b/lnbits/extension_manager.py
@@ -30,13 +30,13 @@ class Extension(NamedTuple):
     hidden: bool = False
     migration_module: Optional[str] = None
     db_name: Optional[str] = None
-    hash: Optional[str] = ""
+    upgrade_hash: Optional[str] = ""
 
     @property
     def module_name(self):
         return (
             f"lnbits.extensions.{self.code}"
-            if self.hash == ""
+            if self.upgrade_hash == ""
             else f"lnbits.upgrades.{self.code}-{self.hash}.{self.code}"
         )
 
@@ -47,7 +47,7 @@ class Extension(NamedTuple):
             is_valid=True,
             is_admin_only=False,  # todo: is admin only
             name=ext_info.name,
-            hash=ext_info.hash if ext_info.module_installed else "",
+            upgrade_hash=ext_info.hash if ext_info.module_installed else "",
         )
 
 
@@ -301,8 +301,6 @@ class InstallableExtension(BaseModel):
 
     def nofiy_upgrade(self) -> None:
         """Update the list of upgraded extensions. The middleware will perform redirects based on this"""
-        if not self.hash:
-            return
 
         clean_upgraded_exts = list(
             filter(