diff --git a/test_runner/regress/test_gc_old_layers.py b/test_runner/regress/test_gc_old_layers.py
index 8e8e9ef41a..dc0abdf6a0 100644
--- a/test_runner/regress/test_gc_old_layers.py
+++ b/test_runner/regress/test_gc_old_layers.py
@@ -8,7 +8,7 @@ def test_gc_old_layers(neon_env_builder: NeonEnvBuilder):
     """
     Test that GC is able to collect all old layers even if them are forming
     "stairs" and there are not three delta layers since last image layer.
-    
+
     Information about image layers needed to collect old layers should
     be propagated by GC to compaction task which should take in in account
     when make a decision which new image layers needs to be created.