diff --git a/src/ca/nciu.h b/src/ca/nciu.h
index ddd43844b..5ed225f5d 100644
--- a/src/ca/nciu.h
+++ b/src/ca/nciu.h
@@ -22,7 +22,7 @@
 #include "tsFreeList.h"
 #include "epicsMutex.h"
 
-#define CA_MINOR_PROTOCOL_REVISION 9
+#define CA_MINOR_PROTOCOL_REVISION 10
 #include "caProto.h"
 
 #define epicsExportSharedSymbols