diff --git a/Makefile b/Makefile
index a64fd9f..186edcb 100644
--- a/Makefile
+++ b/Makefile
@@ -426,10 +426,10 @@ $(BUILDDIR)/mathlib.o :  $(MOUNT_DIR)/mathlib.c
 	$(DO_CC) -O2
 
 $(BUILDDIR)/model.o :    $(MOUNT_DIR)/model.c
-	$(DO_CC) -O2
+	$(DO_CC)
 
 $(BUILDDIR)/model_common.o :$(MOUNT_DIR)/model_common.c
-	$(DO_CC) -O2
+	$(DO_CC)
 
 $(BUILDDIR)/net_dgrm.o : $(MOUNT_DIR)/../network/net_dgrm.c
 	$(DO_CC)