diff --git a/raspi/Makefile.am b/raspi/Makefile.am
index be80985..fb1e9c6 100644
--- a/raspi/Makefile.am
+++ b/raspi/Makefile.am
@@ -6,6 +6,7 @@ AM_CPPFLAGS += \
 	-I/opt/vc/include \
 	-I/opt/vc/include/interface/vcos/pthreads/ \
 	-I/opt/vc/include/interface/vmcs_host/linux \
+	-I$(top_srcdir)/include \
 	-I$(top_srcdir)/common
 
 AM_CXXFLAGS = -fno-rtti -fno-exceptions -fno-strict-aliasing