diff --git a/io.c b/io.c
index 868756ffc5..2e4166d664 100644
--- a/io.c
+++ b/io.c
@@ -10887,7 +10887,7 @@ nogvl_copy_stream_wait_write(struct copy_stream_struct *stp)
     return 0;
 }
 
-#if defined HAVE_COPY_FILE_RANGE || (defined __linux__ && defined __NR_copy_file_range)
+#if 0
 #  define USE_COPY_FILE_RANGE
 #endif