diff --git a/openbsc/src/libcommon/Makefile.am b/openbsc/src/libcommon/Makefile.am
index 6cfebc2..6582d1e 100644
--- a/openbsc/src/libcommon/Makefile.am
+++ b/openbsc/src/libcommon/Makefile.am
@@ -23,6 +23,7 @@
 	debug.c \
 	gsm_data.c \
 	gsm_data_shared.c \
+	oap_client.c \
 	socket.c \
 	talloc_ctx.c \
 	gsm_subscriber_base.c \