diff --git a/ansible/plays/services/matrix/mautrix-slack/config.yaml b/ansible/plays/services/matrix/mautrix-slack/config.yaml
index d9841d5..10c508b 100644
--- a/ansible/plays/services/matrix/mautrix-slack/config.yaml
+++ b/ansible/plays/services/matrix/mautrix-slack/config.yaml
@@ -69,7 +69,7 @@ bridge:
     username_template: slack_{{.}}
     # Displayname template for Slack users.
     # TODO: document variables
-    displayname_template: '{{if eq (trim .DisplayName " ") ""}}{{.RealName}}{{else}}{{.DisplayName}}{{end}} (Slack)'
+    displayname_template: '{{if not .DisplayName}}{{.RealName}}{{else}}{{.DisplayName}}{{end}} (Slack)'
     bot_displayname_template: '{{.Name}} (bot)'
     channel_name_template: '#{{.Name}}'
 {% endraw %}