diff --git a/configure/os/CONFIG.Common.vxWorksCommon b/configure/os/CONFIG.Common.vxWorksCommon
index e01573c26..4fd2725f1 100644
--- a/configure/os/CONFIG.Common.vxWorksCommon
+++ b/configure/os/CONFIG.Common.vxWorksCommon
@@ -65,7 +65,7 @@ OBJLIB_SUFFIX = Library.o
 OBJLIBNAME = $(addsuffix $(OBJLIB_SUFFIX),$(basename $(OBJLIB)))
 OBJLIB_LD_OBJS += $(addsuffix $(OBJ),$(basename $(OBJLIB_SRCS) $(OBJLIB_OBJS)))
 PRODTARGETS += $(OBJLIBNAME)
-INSTALL_PROD += $(OBJLIBNAME:%=$(INSTALL_BIN)/%)
+INSTALL_PROD = $(OBJLIBNAME:%=$(INSTALL_BIN)/%)
 OBJLIB_MUNCHNAME += $(OBJLIBNAME:%$(OBJ)=%$(MUNCH_SUFFIX))
 INSTALL_MUNCHS += $(OBJLIB_MUNCHNAME:%=$(INSTALL_BIN)/%)
 PRODTARGETS += $(OBJLIB_MUNCHNAME)