diff --git a/make/rpmdist.mk b/make/rpmdist.mk
index fb9d4659..997e309f 100644
--- a/make/rpmdist.mk
+++ b/make/rpmdist.mk
@@ -64,7 +64,7 @@ cpmod.dist:
 	touch $@
 
 ifneq ($(RPM_REQUIRED),)
-RPM_REQUIRED_FLAG = -R $(RPM_REQUIRED)
+RPM_REQUIRED_FLAG = -R "$(RPM_REQUIRED)"
 endif
 
 cpfiles.dist: