diff --git a/dist/index.js b/dist/index.js
index cc1cd85..42c7c12 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -6413,8 +6413,7 @@ async function doIssueComment(owner, repo, number, issues, commentTitle, comment
     }
   });
 
-  let showFooter = core.getInput('show-footer');
-  if (showFooter == undefined) showFooter = 'true';
+  const showFooter = core.getInput('show-footer') || 'true';
   const footer =
     showFooter == 'true'
       ? `<sub>🤖 By [issues-similarity-analysis](https://github.com/actions-cool/issues-similarity-analysis)</sub>
diff --git a/src/public.js b/src/public.js
index de3718e..eb9ed2b 100644
--- a/src/public.js
+++ b/src/public.js
@@ -58,8 +58,7 @@ async function doIssueComment(owner, repo, number, issues, commentTitle, comment
     }
   });
 
-  let showFooter = core.getInput('show-footer');
-  if (showFooter == undefined) showFooter = 'true';
+  const showFooter = core.getInput('show-footer') || 'true';
   const footer =
     showFooter == 'true'
       ? `<sub>🤖 By [issues-similarity-analysis](https://github.com/actions-cool/issues-similarity-analysis)</sub>