diff --git a/src/postprocessing/sqlite/SQLite.cpp b/src/postprocessing/sqlite/SQLite.cpp
index 391f5c9d9f29d8154f1ead3116f59fbe9a2db31e..e6efa739fb073c771f440a8389cc83ae1c9fa208 100644
--- a/src/postprocessing/sqlite/SQLite.cpp
+++ b/src/postprocessing/sqlite/SQLite.cpp
@@ -26,6 +26,7 @@
 #include <core/RandomUUID.h>
 
 #include <sstream>
+#include <cassert>
 
 
 namespace walberla {