diff --git a/operation.go b/operation.go
index 24b0496b2..ac79e3102 100644
--- a/operation.go
+++ b/operation.go
@@ -841,9 +841,9 @@ func parseObjectSchema(parser *Parser, refType string, astFile *ast.File) (*spec
 	case refType == NIL:
 		return nil, nil
 	case refType == INTERFACE:
-		return PrimitiveSchema(OBJECT), nil
+		return &spec.Schema{}, nil
 	case refType == ANY:
-		return PrimitiveSchema(OBJECT), nil
+		return &spec.Schema{}, nil
 	case IsGolangPrimitiveType(refType):
 		refType = TransToValidSchemeType(refType)
 
diff --git a/operation_test.go b/operation_test.go
index fb43a446e..50e4ac3b1 100644
--- a/operation_test.go
+++ b/operation_test.go
@@ -2448,15 +2448,16 @@ func TestParseObjectSchema(t *testing.T) {
 
 	schema, err := operation.parseObjectSchema("interface{}", nil)
 	assert.NoError(t, err)
-	assert.Equal(t, schema, PrimitiveSchema(OBJECT))
+	assert.Equal(t, schema, &spec.Schema{})
 
 	schema, err = operation.parseObjectSchema("any", nil)
 	assert.NoError(t, err)
-	assert.Equal(t, schema, PrimitiveSchema(OBJECT))
+	assert.Equal(t, schema, &spec.Schema{})
 
 	schema, err = operation.parseObjectSchema("any{data=string}", nil)
 	assert.NoError(t, err)
-	assert.Equal(t, schema, PrimitiveSchema(OBJECT).SetProperty("data", *PrimitiveSchema("string")))
+	assert.Equal(t, schema,
+		(&spec.Schema{}).WithAllOf(spec.Schema{}, *PrimitiveSchema(OBJECT).SetProperty("data", *PrimitiveSchema("string"))))
 
 	schema, err = operation.parseObjectSchema("int", nil)
 	assert.NoError(t, err)