diff --git a/std/mem.zig b/std/mem.zig
index 6b37dfe401..005d88791f 100644
--- a/std/mem.zig
+++ b/std/mem.zig
@@ -546,9 +546,7 @@ pub fn writeIntLE(comptime T: type, buf: *[@sizeOf(T)]u8, value: T) void {
         buf[0] = bits;
         return;
     }
-    // FIXME: this should just be for (buf).
-    // See https://github.com/ziglang/zig/issues/1663
-    for (buf.*) |*b| {
+    for (buf) |*b| {
         b.* = @truncate(u8, bits);
         bits >>= 8;
     }