diff --git a/internal/data/mixrepoimpl/cmb.go b/internal/data/mixrepoimpl/cmb.go
index 0917929..1769401 100644
--- a/internal/data/mixrepoimpl/cmb.go
+++ b/internal/data/mixrepoimpl/cmb.go
@@ -184,7 +184,7 @@ func (s *CmbMixRepoImpl) GetResponse(_ context.Context, reqBo *bo.CmbResponseBo)
 	}
 
 	if len(reqBo.BizContent) > 0 {
-		encryptBody, err := cmb.Encrypt(s.bc.Cmb.Sm2Puk, reqBo.BizContent)
+		encryptBody, err := cmb.Encrypt(s.bc.Cmb.CmbSm2Puk, reqBo.BizContent)
 		if err != nil {
 			return nil, err
 		}