diff --git a/hbc b/hbc
index ef4b1fb..ea49f21 100755
--- a/hbc
+++ b/hbc
@@ -244,8 +244,8 @@ def doupdate(conn, msgDict):
 	try:
 		code = codecs.decode(msgDict['code'],'base64').decode()
 		csum = msgDict['csum']
-	except:
-		fail = "csum/code missing"
+	except Exception as e:
+		fail = f"csum/code missing: {e}"
 	if not fail:
 		fail = doupdateone(code, csum)