diff --git a/backend/api/model/crossdomain/plugin/openai.go b/backend/api/model/crossdomain/plugin/openapi.go
similarity index 99%
rename from backend/api/model/crossdomain/plugin/openai.go
rename to backend/api/model/crossdomain/plugin/openapi.go
index 66f4d231..7d251cd3 100644
--- a/backend/api/model/crossdomain/plugin/openai.go
+++ b/backend/api/model/crossdomain/plugin/openapi.go
@@ -255,6 +255,9 @@ func (op *Openapi3Operation) ToEinoSchemaParameterInfo(ctx context.Context) (map
 			if err != nil {
 				return nil, err
 			}
+			if paramInfo == nil {
+				continue
+			}
 
 			if _, ok := result[paramName]; ok {
 				logs.CtxWarnf(ctx, "duplicate parameter name '%s'", paramName)