Index: Slim/Utils/MySQLHelper.pm
===================================================================
--- Slim/Utils/MySQLHelper.pm	(revision 23618)
+++ Slim/Utils/MySQLHelper.pm	(working copy)
@@ -91,6 +91,8 @@
 				}
 			}
 		}
+		# because we never enter $class->dbh on this code path, we call $^W = 0 in this place
+		$^W = 0;
 
 		return 1;
 	}