diff --git a/test_runner/regress/test_lfc_prewarm.py b/test_runner/regress/test_lfc_prewarm.py
index a27f1423e5..b6990724da 100644
--- a/test_runner/regress/test_lfc_prewarm.py
+++ b/test_runner/regress/test_lfc_prewarm.py
@@ -46,7 +46,7 @@ def test_lfc_prewarm(neon_simple_env: NeonEnv):
     cur.execute("select * from get_prewarm_info()")
     prewarm_info = cur.fetchall()[0]
     log.info(f"Prewarm info: {prewarm_info}")
-    log.info(f"Prewarm progress: {prewarm_info[1]*100//prewarm_info[0]}%")
+    log.info(f"Prewarm progress: {prewarm_info[1] * 100 // prewarm_info[0]}%")
 
     assert lfc_used_pages > 10000
     assert prewarm_info[0] > 0 and prewarm_info[0] == prewarm_info[1]