diff --git a/agents/unifiedmailboxagent/autotests/unifiedmailboxmanagertest.cpp b/agents/unifiedmailboxagent/autotests/unifiedmailboxmanagertest.cpp
index d9bb9c2a1..d2274872d 100644
--- a/agents/unifiedmailboxagent/autotests/unifiedmailboxmanagertest.cpp
+++ b/agents/unifiedmailboxagent/autotests/unifiedmailboxmanagertest.cpp
@@ -9,6 +9,7 @@
 #include "../common.h"
 
 #include <KSharedConfig>
+#include <KConfigGroup>
 
 #include <AkonadiCore/SpecialCollectionAttribute>
 #include <AkonadiCore/CollectionFetchJob>