diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index d1e0d53e6e..5deceeb86e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -422,7 +422,11 @@ tuple_lock_retry:
 					if (TransactionIdIsValid(SnapshotDirty.xmin))
 						ereport(ERROR,
 								(errcode(ERRCODE_DATA_CORRUPTED),
-								 errmsg_internal("t_xmin is uncommitted in tuple to be updated")));
+								 errmsg_internal("t_xmin %u is uncommitted in tuple (%u,%u) to be updated in table \"%s\"",
+												 SnapshotDirty.xmin,
+												 ItemPointerGetBlockNumber(&tuple->t_self),
+												 ItemPointerGetOffsetNumber(&tuple->t_self),
+												 RelationGetRelationName(relation))));
 
 					/*
 					 * If tuple is being updated by other transaction then we