diff --git a/node.c b/node.c
index a5e0f4c7b7..fed53b8dd0 100644
--- a/node.c
+++ b/node.c
@@ -23,7 +23,7 @@
 #define A_LONG(val) rb_str_catf(buf, "%ld", (val))
 #define A_LIT(lit) AR(rb_inspect(lit))
 #define A_NODE_HEADER(node, term) \
-    rb_str_catf(buf, "@ %s (line: %d, first_lineno: %d, first_column: %d, last_lineno: %d, last_column: %d)"term, \
+    rb_str_catf(buf, "@ %s (line: %d, code_range: (%d,%d)-(%d,%d))"term, \
 	ruby_node_name(nd_type(node)), nd_line(node), nd_lineno(node), nd_column(node), nd_last_lineno(node), nd_last_column(node))
 #define A_FIELD_HEADER(len, name, term) \
     rb_str_catf(buf, "+- %.*s:"term, (len), (name))