diff --git a/pvDataApp/Makefile b/pvDataApp/Makefile
index 0cbc9b5..8bdc13d 100644
--- a/pvDataApp/Makefile
+++ b/pvDataApp/Makefile
@@ -109,6 +109,7 @@ INC += bitSetUtil.h
 LIBSRCS += bitSetUtil.cpp 
 
 SRC_DIRS += $(PVDATA)/monitor
+INC += monitor.h
 INC += monitorPlugin.h
 LIBSRCS += monitor.cpp
 LIBSRCS += monitorPlugin.cpp