diff --git a/sa-token-plugin/sa-token-oauth2/src/main/java/cn/dev33/satoken/oauth2/logic/SaOAuth2Template.java b/sa-token-plugin/sa-token-oauth2/src/main/java/cn/dev33/satoken/oauth2/logic/SaOAuth2Template.java
index 62dc1ebb..2add96c5 100644
--- a/sa-token-plugin/sa-token-oauth2/src/main/java/cn/dev33/satoken/oauth2/logic/SaOAuth2Template.java
+++ b/sa-token-plugin/sa-token-oauth2/src/main/java/cn/dev33/satoken/oauth2/logic/SaOAuth2Template.java
@@ -89,7 +89,7 @@ public class SaOAuth2Template {
 	 */
 	public ClientTokenModel checkClientToken(String clientToken) {
 		ClientTokenModel ct = getClientToken(clientToken);
-		SaOAuth2Exception.throwBy(ct == null, "无效：client_token" + ct, SaOAuth2ErrorCode.CODE_30107);
+		SaOAuth2Exception.throwBy(ct == null, "无效：client_token" + clientToken, SaOAuth2ErrorCode.CODE_30107);
 		return ct;
 	}
 	/**