diff --git a/src/filetransfermanager.cpp b/src/filetransfermanager.cpp
index 73c08a86459faa1c1d80f40325586506df673229..dd893fb12c222eaae36806e898c90cfff0500986 100644
--- a/src/filetransfermanager.cpp
+++ b/src/filetransfermanager.cpp
@@ -24,6 +24,7 @@
 #include "transport/user.h"
 #include "transport/buddy.h"
 #include "transport/logging.h"
+#include "Swiften/Network/ConnectionServerFactory.h"
 
 namespace Transport {