diff --git a/nnlib/devicelib.py b/nnlib/devicelib.py
index 81f0a7f..37a9261 100644
--- a/nnlib/devicelib.py
+++ b/nnlib/devicelib.py
@@ -58,7 +58,7 @@ class devicelib:
         try:
             nvmlInit()
             nvmlShutdown()
-        except e:
+        except:
             return False
         return True