1 files changed, 4 insertions, 1 deletions
diff --git a/node.c b/node.c
index db9aa775f3..320e5d3bd4 100644
--- a/node.c
+++ b/node.c
@@ -357,7 +357,10 @@ dump_node(VALUE buf, VALUE indent, int comment, NODE *node)
 	ANN("          where [attr]: [nd_next->nd_vid]");
 	ANN("example: struct.field += foo");
 	F_NODE(nd_recv, "receiver");
-	F_ID(nd_next->nd_vid, "attr");
+	F_CUSTOM1(nd_next->nd_vid, "attr") {
+	    if (node->nd_next->nd_aid) A("? ");
+	    A_ID(node->nd_next->nd_vid);
+	}
 	F_CUSTOM1(nd_next->nd_mid, "operator") {
 	    switch (node->nd_next->nd_mid) {
 	      case 0: A("0 (||)"); break;