diff --git a/Multiprotocol/Makefile.orangetx b/Multiprotocol/Makefile.orangetx
index 3c596b7..00f119c 100644
--- a/Multiprotocol/Makefile.orangetx
+++ b/Multiprotocol/Makefile.orangetx
@@ -598,7 +598,7 @@ clean_list :
 	$(REMOVE) $(TARGET).map
 	$(REMOVE) $(TARGET).sym
 	$(REMOVE) $(TARGET).lss
-	$(REMOVE) $(SRC:%.c=$(OBJDIR)/%.o)
+	$(REMOVE) $(CPPSRC:%.cpp=%.o)
 	$(REMOVE) $(SRC:%.c=$(OBJDIR)/%.lst)
 	$(REMOVE) $(SRC:.c=.s)
 	$(REMOVE) $(SRC:.c=.d)