diff --git a/make/defs.mk b/make/defs.mk
index 11b003bb..67a60fd1 100644
--- a/make/defs.mk
+++ b/make/defs.mk
@@ -676,7 +676,7 @@ endif
 
 ifeq ($(USE_SCOPE_CASMIX),true)
 SCOPE_CASMIX_DIR           = /opt/scope-casmix
-SCOPE_CASMIX_VERSION       = $(call cat_version,/usr/share/doc/packages/scope-casmix/VERSION)
+SCOPE_CASMIX_VERSION       = $(call cat_version,/usr/share/doc/packages/scope-casmix-devel)
 RPM_REQUIRES_RUN          += scope-casmix >= $(SCOPE_CASMIX_VERSION)
 RPM_REQUIRES_DEVEL        += scope-casmix-devel >= $(SCOPE_CASMIX_VERSION)
 INCLUDE                   += -I$(SCOPE_CASMIX_DIR)/include