1 files changed, 6 insertions, 2 deletions
diff --git a/spec/ruby/optional/capi/ext/globals_spec.c b/spec/ruby/optional/capi/ext/globals_spec.c
index f70622f66c..75860d3774 100644
--- a/spec/ruby/optional/capi/ext/globals_spec.c
+++ b/spec/ruby/optional/capi/ext/globals_spec.c
@@ -7,12 +7,16 @@ extern "C" {
 
 VALUE g_hooked_var;
 
+VALUE var_2x_getter(ID id, VALUE *data) {
+  return *data;
+}
+
 void var_2x_setter(VALUE val, ID id, VALUE *var) {
-    *var = INT2NUM(NUM2INT(val) * 2);
+  *var = INT2NUM(NUM2INT(val) * 2);
 }
 
 static VALUE sb_define_hooked_variable(VALUE self, VALUE var_name) {
-  rb_define_hooked_variable(StringValuePtr(var_name), &g_hooked_var, 0, var_2x_setter);
+  rb_define_hooked_variable(StringValuePtr(var_name), &g_hooked_var, var_2x_getter, var_2x_setter);
   return Qnil;
 }