diff --git a/src/bin/pg_upgrade/controldata.c b/src/bin/pg_upgrade/controldata.c
index 9071a6fd45..29f1153340 100644
--- a/src/bin/pg_upgrade/controldata.c
+++ b/src/bin/pg_upgrade/controldata.c
@@ -162,9 +162,9 @@ get_control_data(ClusterInfo *cluster, bool live_check)
 				else if (strcmp(p, "shut down\n") != 0)
 				{
 					if (cluster == &old_cluster)
-						pg_fatal("The source cluster was not shut down cleanly.");
+						pg_fatal("The source cluster was not shut down cleanly, state reported as: \"%s\"", p);
 					else
-						pg_fatal("The target cluster was not shut down cleanly.");
+						pg_fatal("The target cluster was not shut down cleanly, state reported as: \"%s\"", p);
 				}
 				got_cluster_state = true;
 			}