diff --git a/dist/index.js b/dist/index.js
index 09cd5b3..e9f9496 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -16443,7 +16443,7 @@ async function main() {
       setPagesPath({ staticSiteGenerator, generatorConfigFile, path: siteUrl.pathname })
     }
     outputPagesBaseUrl(siteUrl)
-    core.exportVariable('GITHUB_PAGES', true)
+    core.exportVariable('GITHUB_PAGES', 'true')
   } catch (error) {
     core.setFailed(error)
     process.exit(1)
diff --git a/src/index.js b/src/index.js
index 5eecbac..bcb6b02 100644
--- a/src/index.js
+++ b/src/index.js
@@ -18,7 +18,7 @@ async function main() {
       setPagesPath({ staticSiteGenerator, generatorConfigFile, path: siteUrl.pathname })
     }
     outputPagesBaseUrl(siteUrl)
-    core.exportVariable('GITHUB_PAGES', true)
+    core.exportVariable('GITHUB_PAGES', 'true')
   } catch (error) {
     core.setFailed(error)
     process.exit(1)