diff --git a/docs/source/sls/algorithm.rst b/docs/source/sls/algorithm.rst
index 8cd828c4271ac4918fe03f03ac9b9f386d18410a..615d04ae831168affc912b99b03e6ec8a1f5bbde 100644
--- a/docs/source/sls/algorithm.rst
+++ b/docs/source/sls/algorithm.rst
@@ -70,7 +70,7 @@ Data Calibration Steps
 ``````````````````
 仪器效应改正包括以下步骤：
 
-**DQ Initialization**
+`**DQ Initialization**`
 
 class： csst_ms_sls_instrument.steps.DQIstep