diff --git a/tests/compat.sh b/tests/compat.sh
index 1121e58..27d712b 100755
--- a/tests/compat.sh
+++ b/tests/compat.sh
@@ -878,6 +878,7 @@
         done
     }
 else
+    echo "Warning: lsof not available, wait_server_start = sleep"
     wait_server_start() {
         sleep 2
     }