diff --git a/prism_compile.c b/prism_compile.c
index 6880f46b69..eab1a2d7ea 100644
--- a/prism_compile.c
+++ b/prism_compile.c
@@ -2688,6 +2688,7 @@ pm_compile_defined_expr0(rb_iseq_t *iseq, const pm_node_t *node, LINK_ANCHOR *co
         return;
       case PM_CALL_AND_WRITE_NODE:
       case PM_CALL_OPERATOR_WRITE_NODE:
+      case PM_CALL_OR_WRITE_NODE:
 
       case PM_CONSTANT_WRITE_NODE:
       case PM_CONSTANT_OPERATOR_WRITE_NODE:
diff --git a/test/ruby/test_compile_prism.rb b/test/ruby/test_compile_prism.rb
index ba8178674f..df6a27a666 100644
--- a/test/ruby/test_compile_prism.rb
+++ b/test/ruby/test_compile_prism.rb
@@ -240,6 +240,7 @@ module Prism
 
       assert_prism_eval("defined?(PrismTestSubclass.test_call_and_write_node &&= 1)")
       assert_prism_eval("defined?(PrismTestSubclass.test_call_operator_write_node += 1)")
+      assert_prism_eval("defined?(PrismTestSubclass.test_call_or_write_node ||= 1)")
     end
 
     def test_GlobalVariableReadNode