diff --git a/src/controller/controller.hxx b/src/controller/controller.hxx
index 99021596..d3df6139 100644
--- a/src/controller/controller.hxx
+++ b/src/controller/controller.hxx
@@ -21,6 +21,7 @@
 #define LUPPP_CONTROLLER_H
 
 #include <string>
+#include <jack/jack.h>
 
 #include "../gridlogic.hxx"