diff --git a/src/slurmctld/Makefile.am b/src/slurmctld/Makefile.am
index d2e94fe851c62cdebc507736d53321d27664b71d..9a281fbb35d2a8f34d9127a00d67e907db4f1523 100644
--- a/src/slurmctld/Makefile.am
+++ b/src/slurmctld/Makefile.am
@@ -34,7 +34,8 @@ slurmctld_SOURCES = 	\
 	node_scheduler.c\
 	partition_mgr.c \
 	read_config.c	\
-	step_mgr.c
+	step_mgr.c \
+	pack.c