diff --git a/lib/std/io/BufferedReader.zig b/lib/std/io/BufferedReader.zig
index b814ded04c..2b8624351b 100644
--- a/lib/std/io/BufferedReader.zig
+++ b/lib/std/io/BufferedReader.zig
@@ -730,7 +730,7 @@ pub fn fill(br: *BufferedReader, n: usize) Reader.Error!void {
     }
     if (seek > 0) {
         const remainder = buffer[seek..];
-        @memmove(buffer[0..remainder.len], remainder);
+        std.mem.copyForwards(u8, buffer[0..remainder.len], remainder);
         br.end = remainder.len;
         br.seek = 0;
     }