diff --git a/src/protocol/AcknowledgeManager.cpp b/src/protocol/AcknowledgeManager.cpp
index fd41755..33ce5b1 100644
--- a/src/protocol/AcknowledgeManager.cpp
+++ b/src/protocol/AcknowledgeManager.cpp
@@ -22,9 +22,11 @@ void AcknowledgeManager::reset() {
         lock.unlock();
 
         /* save because entries are not accessable anymore */
-        for(const auto& entry : pending_entries)
-            if(entry->acknowledge_listener)
+        for(const auto& entry : pending_entries) {
+            if(entry->acknowledge_listener) {
                 entry->acknowledge_listener->executionFailed("reset");
+            }
+        }
     }
 }