diff --git a/RTCP/Cobalt/InputProc/src/Delays/Delays.cc b/RTCP/Cobalt/InputProc/src/Delays/Delays.cc
index 1f5b73aebf24b6265208da0ebe79b80b4e2ae0c7..760ea74c86a7227882e7ab1b605031b913920024 100644
--- a/RTCP/Cobalt/InputProc/src/Delays/Delays.cc
+++ b/RTCP/Cobalt/InputProc/src/Delays/Delays.cc
@@ -28,9 +28,11 @@
 #include <Common/Thread/Cancellation.h>
 #include <CoInterface/Exceptions.h>
 
+#ifdef HAVE_CASACORE
 #include <measures/Measures/MEpoch.h>
 #include <measures/Measures/MCDirection.h>
 #include <casa/Exceptions/Error.h>
+#endif
 
 
 namespace LOFAR