diff --git a/drivers/a2j/Makefile.am b/drivers/a2j/Makefile.am
index 1708c9d..8c7b1c5 100644
--- a/drivers/a2j/Makefile.am
+++ b/drivers/a2j/Makefile.am
@@ -13,3 +13,5 @@ a2j_common_sources = port.c port_hash.c port_thread.c list.c
 a2j_in_la_LDFLAGS = -module -avoid-version @OS_LDFLAGS@
 a2j_in_la_SOURCES = input_client.c $(a2j_common_sources)
 
+noinst_HEADERS = a2j.h list.h port.h port_hash.h port_thread.h
+