diff --git a/hermit/usr/ircce/RCCE.h b/hermit/usr/ircce/RCCE.h
index af6ae4b48..e7e1557ab 100644
--- a/hermit/usr/ircce/RCCE.h
+++ b/hermit/usr/ircce/RCCE.h
@@ -38,6 +38,7 @@
 #define SCC
 #define COPPERRIDGE
 #define USE_REMOTE_PUT_LOCAL_GET
+#define USE_PROBE_FLAGS
 #undef SHMADD
 #endif