diff --git a/include/Makefile.am b/include/Makefile.am
index dac7011..d8eb1ec 100644
--- a/include/Makefile.am
+++ b/include/Makefile.am
@@ -1,2 +1,3 @@
-nobase_include_HEADERS = osmocom/gsupclient/gsup_client.h
+SUBDIRS = osmocom
 
+nobase_include_HEADERS = osmocom/gsupclient/gsup_client.h