diff --git a/releasenotes-builder/src/test/java/com/github/checkstyle/internal/AbstractReleaseNotesTestSupport.java b/releasenotes-builder/src/test/java/com/github/checkstyle/internal/AbstractReleaseNotesTestSupport.java
index d43f8bb3..a13e9ff6 100644
--- a/releasenotes-builder/src/test/java/com/github/checkstyle/internal/AbstractReleaseNotesTestSupport.java
+++ b/releasenotes-builder/src/test/java/com/github/checkstyle/internal/AbstractReleaseNotesTestSupport.java
@@ -266,7 +266,7 @@ protected static String getReleaseIsPatchMessage(String releaseVersion,
             + "Release number is a patch(" + releaseVersion + "), but release notes contain 'new' "
             + "or 'breaking compatability' labels. Please correct release number by running "
             + "https://github.com/checkstyle/checkstyle/actions/workflows/bump-version-and-"
-            + "update-milestone.yml. " + constructOffendingIssuesMessage(offendingIssues)
+            + "update-milestone.yml . " + constructOffendingIssuesMessage(offendingIssues)
             + System.lineSeparator();
     }