diff --git a/ISSUE_TEMPLATE.md b/ISSUE_TEMPLATE.md
index bd29c6e..209ff4e 100644
--- a/ISSUE_TEMPLATE.md
+++ b/ISSUE_TEMPLATE.md
@@ -3,6 +3,7 @@ Before you submit bug reports: https://vdirsyncer.readthedocs.io/en/stable/contr
 Things to include in your bugreport:
 
 * Your vdirsyncer version
+* If applicable, which server software (and which version) you're using
 * Your Python version
 * Your operating system
 * Your config file