diff --git a/lnbits/app.py b/lnbits/app.py
index b581eddd6..15b23644a 100644
--- a/lnbits/app.py
+++ b/lnbits/app.py
@@ -476,17 +476,34 @@ def register_ext_routes(app: FastAPI, ext: Extension) -> None:
 
 
 def _load_extension_type(ext_id: str) -> str | None:
-    try:
-        conf_path = Path(
-            settings.lnbits_extensions_path, "extensions", ext_id, "config.json"
-        )
-        if not conf_path.is_file():
-            return None
-        with open(conf_path, "r+") as json_file:
-            config_json = json.load(json_file)
-        return config_json.get("extension_type")
-    except Exception:
-        return None
+    base_dirs = [
+        Path(settings.lnbits_extensions_path, "extensions", ext_id),
+        Path(settings.lnbits_extensions_path, ext_id),
+        Path(settings.lnbits_path, "lnbits", "extensions", ext_id),
+        Path(settings.lnbits_path, "extensions", ext_id),
+        Path.cwd() / "lnbits" / "extensions" / ext_id,
+        Path.cwd() / "extensions" / ext_id,
+    ]
+    for base in base_dirs:
+        try:
+            conf_path = base / "config.json"
+            if conf_path.is_file():
+                with open(conf_path, "r") as json_file:
+                    config_json = json.load(json_file)
+                ext_type = config_json.get("extension_type")
+                if ext_type:
+                    return ext_type
+        except Exception:
+            continue
+
+    for base in base_dirs:
+        try:
+            wasm_dir = base / "wasm"
+            if (wasm_dir / "module.wasm").is_file() or (wasm_dir / "module.wat").is_file():
+                return "wasm"
+        except Exception:
+            continue
+    return None
 
 
 async def check_and_register_extensions(app: FastAPI) -> None:
diff --git a/lnbits/core/helpers.py b/lnbits/core/helpers.py
index a66102adf..1c878219f 100644
--- a/lnbits/core/helpers.py
+++ b/lnbits/core/helpers.py
@@ -47,17 +47,24 @@ def _is_wasm_extension(ext: InstallableExtension) -> bool:
         candidate_dirs = [
             Path(ext.ext_dir),
             Path(settings.lnbits_extensions_path, "extensions", ext.id),
+            Path(settings.lnbits_extensions_path, ext.id),
+            Path(settings.lnbits_path, "lnbits", "extensions", ext.id),
             Path(settings.lnbits_path, "extensions", ext.id),
+            Path.cwd() / "lnbits" / "extensions" / ext.id,
             Path.cwd() / "extensions" / ext.id,
         ]
         for base in candidate_dirs:
             conf_path = Path(base, "config.json")
             if not conf_path.is_file():
                 continue
-            with open(conf_path, "r+") as json_file:
+            with open(conf_path, "r") as json_file:
                 config_json = json.load(json_file)
             if config_json.get("extension_type") == "wasm":
                 return True
+        for base in candidate_dirs:
+            wasm_dir = Path(base, "wasm")
+            if (wasm_dir / "module.wasm").is_file() or (wasm_dir / "module.wat").is_file():
+                return True
     except Exception as exc:
         logger.debug(f"Failed to load extension config for '{ext.id}': {exc!s}")
 
diff --git a/lnbits/core/views/extension_api.py b/lnbits/core/views/extension_api.py
index 4628aba10..c140931b4 100644
--- a/lnbits/core/views/extension_api.py
+++ b/lnbits/core/views/extension_api.py
@@ -52,17 +52,35 @@ from lnbits.settings import settings
 
 
 def _load_extension_type(ext_id: str) -> str:
-    try:
-        conf_path = Path(
-            settings.lnbits_extensions_path, "extensions", ext_id, "config.json"
-        )
-        if not conf_path.is_file():
-            return "python"
-        with open(conf_path, "r+") as json_file:
-            config_json = json.load(json_file)
-        return config_json.get("extension_type", "python")
-    except Exception:
-        return "python"
+    base_dirs = [
+        Path(settings.lnbits_extensions_path, "extensions", ext_id),
+        Path(settings.lnbits_extensions_path, ext_id),
+        Path(settings.lnbits_path, "lnbits", "extensions", ext_id),
+        Path(settings.lnbits_path, "extensions", ext_id),
+        Path.cwd() / "lnbits" / "extensions" / ext_id,
+        Path.cwd() / "extensions" / ext_id,
+    ]
+    for base in base_dirs:
+        try:
+            conf_path = base / "config.json"
+            if not conf_path.is_file():
+                continue
+            with open(conf_path, "r") as json_file:
+                config_json = json.load(json_file)
+            ext_type = config_json.get("extension_type")
+            if ext_type:
+                return ext_type
+        except Exception:
+            continue
+
+    for base in base_dirs:
+        try:
+            wasm_dir = base / "wasm"
+            if (wasm_dir / "module.wasm").is_file() or (wasm_dir / "module.wat").is_file():
+                return "wasm"
+        except Exception:
+            continue
+    return "python"
 
 from ..crud import (
     create_user_extension,