diff --git a/watchquagga/Makefile.am b/watchquagga/Makefile.am
index badaa5b..9256006 100644
--- a/watchquagga/Makefile.am
+++ b/watchquagga/Makefile.am
@@ -1,6 +1,6 @@
 ## Process this file with Automake to create Makefile.in
 
-INCLUDES = @INCLUDES@ -I$(top_srcdir) -I$(top_srcdir)/lib -I$(top_builddir)/lib
+AM_CPPFLAGS = -I$(top_srcdir) -I$(top_srcdir)/lib -I$(top_builddir)/lib
 DEFS = @DEFS@ -DSTATEDIR=\"$(localstatedir)/\"
 
 AM_CFLAGS = $(PICFLAGS)