diff --git a/relay/adaptor/ollama/model.go b/relay/adaptor/ollama/model.go
index 94947ec7..8ed4174e 100644
--- a/relay/adaptor/ollama/model.go
+++ b/relay/adaptor/ollama/model.go
@@ -7,7 +7,7 @@ type Options struct {
 	TopP             float64 `json:"top_p,omitempty"`
 	FrequencyPenalty float64 `json:"frequency_penalty,omitempty"`
 	PresencePenalty  float64 `json:"presence_penalty,omitempty"`
-	NumPredict  float64 `json:"num_predict,omitempty"`
+	NumPredict  int `json:"num_predict,omitempty"`
 }
 
 type Message struct {