diff --git a/tests/clickhouse-test b/tests/clickhouse-test
index 2215982affe..1446c49b08f 100755
--- a/tests/clickhouse-test
+++ b/tests/clickhouse-test
@@ -76,7 +76,10 @@ def trim_for_log(s):
     if not s:
         return s
     lines = s.splitlines()
-    return "\n".join(lines[:50] + ["#" * 100] + lines[-50:])
+    if len(lines) > 100:
+        return "\n".join(lines[:50] + ["#" * 100] + lines[-50:])
+    else:
+        return "\n".join(lines)
 
 
 class HTTPError(Exception):