diff --git a/dto/gemini.go b/dto/gemini.go
index 029c3f03..fd8b5a0b 100644
--- a/dto/gemini.go
+++ b/dto/gemini.go
@@ -46,6 +46,7 @@ func (r *GeminiChatRequest) UnmarshalJSON(data []byte) error {
 type ToolConfig struct {
 	FunctionCallingConfig *FunctionCallingConfig `json:"functionCallingConfig,omitempty"`
 	RetrievalConfig       *RetrievalConfig       `json:"retrievalConfig,omitempty"`
+	IncludeServerSideToolInvocations *bool       `json:"includeServerSideToolInvocations,omitempty"`
 }
 
 type FunctionCallingConfig struct {