diff --git a/src/dev/devBoXVme220.c b/src/dev/devBoXVme220.c
index b0fae3ba4..2a13a3d0f 100644
--- a/src/dev/devBoXVme220.c
+++ b/src/dev/devBoXVme220.c
@@ -102,7 +102,7 @@ static long write_bo(pbo)
 
 	
 	pvmeio = (struct vmeio *)&(pbo->out.value);
-	status = xy220_driver(pvmeio->card,pbo->rval,pbo->mask);
+	status = xy220_driver(pvmeio->card,&pbo->rval,pbo->mask);
 	if(status!=0) {
                 recGblSetSevr(pbo,WRITE_ALARM,INVALID_ALARM);
 	}
diff --git a/src/dev/devMbboXVme220.c b/src/dev/devMbboXVme220.c
index 086331fcf..152a4e425 100644
--- a/src/dev/devMbboXVme220.c
+++ b/src/dev/devMbboXVme220.c
@@ -104,7 +104,7 @@ static long write_mbbo(pmbbo)
 
 	
 	pvmeio = &(pmbbo->out.value.vmeio);
-	status = xy220_driver(pvmeio->card,pmbbo->rval,pmbbo->mask);
+	status = xy220_driver(pvmeio->card,&pmbbo->rval,pmbbo->mask);
 	if(status==0) {
 		status = xy220_read(pvmeio->card,pmbbo->mask,&value);
 		if(status==0) pmbbo->rbv = value;