diff --git a/.gitlab/issue_templates/Bug.md b/.gitlab/issue_templates/Bug.md
index 89888ec6..bdbe981a 100644
--- a/.gitlab/issue_templates/Bug.md
+++ b/.gitlab/issue_templates/Bug.md
@@ -8,7 +8,7 @@ first to ensure that you create a clear and specific issue.
 <!--
 Provide at least the following information:
 * Your OS and version
-* Affected GNOME Calendar version
+* Affected GNOME Calendar version (please test the latest "nightly" development version too; see https://handbook.gnome.org/testing.html for details)
 -->
 
 ### Bug summary