diff --git a/frontends/beos/Makefile b/frontends/beos/Makefile
index 8a79fc5ec..3546bcfb4 100644
--- a/frontends/beos/Makefile
+++ b/frontends/beos/Makefile
@@ -73,11 +73,11 @@ RESOURCES = $(RSRC_BEOS)
 
 $(RDEF_IMP_BEOS): $(RDEP_BEOS)
 	$(VQ)echo "     GEN: $@"
-	$(Q)n=5000; for f in $^; do echo "resource($$n,\"$${f#beos/res/}\") #'data' import \"$${f#beos/}\";"; n=$$(($$n+1)); done > $@
+	$(Q)n=5000; for f in $^; do echo "resource($$n,\"$${f#$(FRONTEND_RESOURCES_DIR)/}\") #'data' import \"$${f#beos/}\";"; n=$$(($$n+1)); done > $@
 
 $(RSRC_BEOS): $(RDEF_BEOS) $(RDEF_IMP_BEOS)
 	$(VQ)echo "      RC: $<"
-	$(Q)$(BEOS_RC) -I beos -o $@ $^
+	$(Q)$(BEOS_RC) -I $(FRONTEND_SOURCE_DIR) -o $@ $^
 
 
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