diff --git a/include/Makefile.am b/include/Makefile.am
index b16ce5c..ddb25df 100644
--- a/include/Makefile.am
+++ b/include/Makefile.am
@@ -1 +1,5 @@
 SUBDIRS = gapk
+
+if ENABLE_GSMHR
+SUBDIRS += gsmhr
+endif