diff --git a/reactos/drivers/filesystems/udfs/udf_dbg.h b/reactos/drivers/filesystems/udfs/udf_dbg.h
index 0fb862be3bf..de785d87888 100644
--- a/reactos/drivers/filesystems/udfs/udf_dbg.h
+++ b/reactos/drivers/filesystems/udfs/udf_dbg.h
@@ -39,7 +39,7 @@
 
 //#define UDF_SIMULATE_WRITES
 
-#define USE_PERF_PRINT
+//#define USE_PERF_PRINT
 
 #define USE_KD_PRINT
 #define USE_MM_PRINT