diff --git a/tools/Makefile.am b/tools/Makefile.am
index 0b8fbd0..5d3600d 100644
--- a/tools/Makefile.am
+++ b/tools/Makefile.am
@@ -1,7 +1,7 @@
 noinst_PROGRAMS = libevdev-events
 bin_PROGRAMS = touchpad-edge-detector
 
-AM_CPPFLAGS = $(GCC_CFLAGS) -I$(top_srcdir)/include -I$(top_srcdir)/libevdev
+AM_CPPFLAGS = $(GCC_CFLAGS) -I$(top_srcdir) -I$(top_srcdir)/include -I$(top_srcdir)/libevdev
 libevdev_ldadd = $(top_builddir)/libevdev/libevdev.la
 
 libevdev_events_SOURCES = libevdev-events.c