diff --git a/AMDiS/src/io/ArhWriter.h b/AMDiS/src/io/ArhWriter.h
index 31369c5fd949ddaf14f224823bac6d96c40b6443..d380324a5a8de1cc54f7ad1877d22cfdbb20dc4a 100644
--- a/AMDiS/src/io/ArhWriter.h
+++ b/AMDiS/src/io/ArhWriter.h
@@ -28,6 +28,7 @@
 
 #include "AMDiS_fwd.h"
 #include "DOFVector.h"
+#include "SystemVector.h"
 
 namespace AMDiS {