diff --git a/src/Makefile.am b/src/Makefile.am
index 89b8138..6c0398b 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -4,7 +4,7 @@
 # Please read Chapter 6 "Library interface versions" of the libtool documentation before making any modification
 LIBVERSION=3:0:0
 
-INCLUDES = $(all_includes) -I$(top_srcdir)/include
+INCLUDES = $(all_includes) -I$(top_srcdir)/include -I$(top_builddir)/include
 AM_CFLAGS = -fPIC -Wall
 
 lib_LTLIBRARIES = libosmocore.la