diff --git a/src/db/dbScan.c b/src/db/dbScan.c
index e41a5702f..cbd461282 100644
--- a/src/db/dbScan.c
+++ b/src/db/dbScan.c
@@ -52,6 +52,7 @@
 #include 	<vxLib.h>
 #include 	<tickLib.h>
 #include 	<sysLib.h>
+#include 	<intLib.h>
 
 #include	<dbDefs.h>
 #include	<epicsPrint.h>