diff --git a/src/libutil/logging.cc b/src/libutil/logging.cc
index 5a2dd99af..54702e4ea 100644
--- a/src/libutil/logging.cc
+++ b/src/libutil/logging.cc
@@ -67,7 +67,7 @@ public:
             case lvlWarn: c = '4'; break;
             case lvlNotice: case lvlInfo: c = '5'; break;
             case lvlTalkative: case lvlChatty: c = '6'; break;
-            case lvlDebug: case lvlVomit: c = '7';
+            case lvlDebug: case lvlVomit: c = '7'; break;
             default: c = '7'; break; // should not happen, and missing enum case is reported by -Werror=switch-enum
             }
             prefix = std::string("<") + c + ">";