diff --git a/parse.y b/parse.y
index b8f4981013..b138933131 100644
--- a/parse.y
+++ b/parse.y
@@ -12013,9 +12013,6 @@ static rb_node_errinfo_t *
 rb_node_errinfo_new(struct parser_params *p, const YYLTYPE *loc)
 {
     rb_node_errinfo_t *n = NODE_NEWNODE(NODE_ERRINFO, rb_node_errinfo_t, loc);
-    n->not_used = 0;
-    n->not_used2 = 0;
-    n->not_used3 = 0;
 
     return n;
 }
diff --git a/rubyparser.h b/rubyparser.h
index b9a10f7eff..403efe50ac 100644
--- a/rubyparser.h
+++ b/rubyparser.h
@@ -937,10 +937,6 @@ typedef struct RNode_FALSE {
 
 typedef struct RNode_ERRINFO {
     NODE node;
-
-    VALUE not_used;
-    VALUE not_used2;
-    VALUE not_used3;
 } rb_node_errinfo_t;
 
 typedef struct RNode_DEFINED {