diff --git a/src/softIoc/Makefile b/src/softIoc/Makefile
index 0ddf54187..63d5f5b8a 100644
--- a/src/softIoc/Makefile
+++ b/src/softIoc/Makefile
@@ -12,6 +12,8 @@ include $(TOP)/configure/CONFIG
 PROD_IOC_DEFAULT = softIoc
 PROD_IOC_iOS = -nil-
 
+PROD_LDFLAGS_vxWorks = --whole-archive
+
 DBD += softIoc.dbd
 softIoc_DBD += base.dbd
 softIoc_DBD += dlload.dbd