diff --git a/src/blockresponder.h b/src/blockresponder.h
index 8f77bea83567d0991ef255ff77757e7f42b22f3e..ed415502e9bc259c128adceb8ea90110b0baa31e 100644
--- a/src/blockresponder.h
+++ b/src/blockresponder.h
@@ -21,9 +21,9 @@
 #pragma once
 
 #include <vector>
-#include "Swiften/Swiften.h"
 #include "Swiften/Queries/SetResponder.h"
 #include "transport/BlockPayload.h"
+#include <boost/signal.hpp>
 
 namespace Transport {