diff --git a/check_cert_for_prosody.sh b/check_cert_for_prosody.sh
index d88209e..e7e979b 100755
--- a/check_cert_for_prosody.sh
+++ b/check_cert_for_prosody.sh
@@ -252,7 +252,9 @@ if [[ -f "$(dirname "$cert_installed")/auth.$(basename "$cert_installed")" ]] \
    auth_domain_present=true
 else
    auth_domain_present=false
-   warn "no cert/key for auth.${service_domain} present"
+   if $terminal ; then
+      warn "no cert/key for auth.${service_domain} present"
+   fi
 fi