diff --git a/motorApp/NewportSrc/Makefile b/motorApp/NewportSrc/Makefile
index 116b5951..9cc9db6d 100644
--- a/motorApp/NewportSrc/Makefile
+++ b/motorApp/NewportSrc/Makefile
@@ -48,6 +48,7 @@ PROD_IOC += XPSGatheringMain
 XPSGatheringMain_SRCS += XPSGatheringMain.c
 XPSGatheringMain_LIBS += Newport motor asyn seq pv
 XPSGatheringMain_LIBS += $(EPICS_BASE_IOC_LIBS)
+XPSGatheringMain_SYS_LIBS_solaris += socket nsl
 
 include $(TOP)/configure/RULES