--- a/ui/Makefile	Mon Mar 24 20:37:16 2025 +0100
+++ b/ui/Makefile	Tue Mar 25 13:31:30 2025 +0100
@@ -42,6 +42,6 @@
 
 include $(TOOLKIT)/Makefile
 
-$(COMMON_OBJPRE)%.o: common/%.c
+$(COMMON_OBJPRE)%$(OBJ_EXT): common/%.c
 	$(CC) -o $@ -c -I../ucx/ $(CFLAGS) $(TK_CFLAGS) $<