diff --git a/routers/web/auth/oauth2_provider.go b/routers/web/auth/oauth2_provider.go
index 1aebc047bd..5dbb529e0a 100644
--- a/routers/web/auth/oauth2_provider.go
+++ b/routers/web/auth/oauth2_provider.go
@@ -248,7 +248,7 @@ func AuthorizeOAuth(ctx *context.Context) {
 			}, form.RedirectURI)
 			return
 		}
-		if err := ctx.Session.Set("CodeChallengeMethod", form.CodeChallenge); err != nil {
+		if err := ctx.Session.Set("CodeChallenge", form.CodeChallenge); err != nil {
 			handleAuthorizeError(ctx, AuthorizeError{
 				ErrorCode:        ErrorCodeServerError,
 				ErrorDescription: "cannot set code challenge",