diff --git a/components/steps/style/custom-icon.ts b/components/steps/style/custom-icon.ts
index 01911178fa..a23db96a14 100644
--- a/components/steps/style/custom-icon.ts
+++ b/components/steps/style/custom-icon.ts
@@ -18,7 +18,7 @@ const genStepsCustomIconStyle: GenerateStyle<StepsToken, CSSObject> = (token) =>
           width: customIconSize,
           height: customIconSize,
           fontSize: customIconFontSize,
-          lineHeight: `${unit(customIconFontSize)}`,
+          lineHeight: `${unit(customIconSize)}`,
         },
       },
     },