diff --git a/tools/diagnose.py b/tools/diagnose.py
index <HASH>..<HASH> 100644
--- a/tools/diagnose.py
+++ b/tools/diagnose.py
@@ -110,6 +110,8 @@ def check_mxnet():
             print('Commit Hash   :', ch)
     except ImportError:
         print('No MXNet installed.')
+    except FileNotFoundError:
+        print('Hashtag not found. Not installed from pre-built package.')
     except Exception as e:
         import traceback
         if not isinstance(e, IOError):
fix diagnose if hashtag not found. (#<I>)