diff --git a/Makefile b/Makefile
index 39168d7658af3e320de9908f3cb4c2014e4164f3..f4e7ad947896c2a8842e7f1edafc52e15f319392 100644
--- a/Makefile
+++ b/Makefile
@@ -410,7 +410,7 @@ ifeq ($(OSARCH),SunOS)
 endif
 
 ifeq ($(MAKETOPLEVEL),$(MAKELEVEL))
-  CFLAGS+=$(ASTCFLAGS) $(TOPDIR_CFLAGS)
+  CFLAGS+=$(TOPDIR_CFLAGS) $(ASTCFLAGS)
 endif
 
 # This is used when generating the doxygen documentation