diff --git a/ruby_parser.c b/ruby_parser.c
index a4c4689fa3..2fbba418a3 100644
--- a/ruby_parser.c
+++ b/ruby_parser.c
@@ -344,7 +344,6 @@ static const rb_parser_config_t rb_global_parser_config = {
 
     .attr_get = rb_attr_get,
 
-    .ary_push = rb_ary_push,
     .ary_new_from_args = rb_ary_new_from_args,
     .ary_unshift = rb_ary_unshift,
 
diff --git a/rubyparser.h b/rubyparser.h
index 7fa71f16f8..3d594a06cf 100644
--- a/rubyparser.h
+++ b/rubyparser.h
@@ -1196,7 +1196,6 @@ typedef struct rb_parser_config_struct {
     VALUE (*attr_get)(VALUE obj, ID id);
 
     /* Array */
-    VALUE (*ary_push)(VALUE ary, VALUE elem);
     VALUE (*ary_new_from_args)(long n, ...);
     VALUE (*ary_unshift)(VALUE ary, VALUE item);
 
diff --git a/universal_parser.c b/universal_parser.c
index 930cce0b67..a381f9a86b 100644
--- a/universal_parser.c
+++ b/universal_parser.c
@@ -86,7 +86,6 @@
 
 #define rb_attr_get p->config->attr_get
 
-#define rb_ary_push          p->config->ary_push
 #undef rb_ary_new_from_args
 #define rb_ary_new_from_args p->config->ary_new_from_args
 #define rb_ary_unshift       p->config->ary_unshift