diff --git a/lib/compiler_rt/memmove.zig b/lib/compiler_rt/memmove.zig
index 79c82df884..c136e80c7c 100644
--- a/lib/compiler_rt/memmove.zig
+++ b/lib/compiler_rt/memmove.zig
@@ -47,7 +47,7 @@ fn memmoveFast(dest: ?[*]u8, src: ?[*]u8, len: usize) callconv(.C) ?[*]u8 {
     const dest_address = @intFromPtr(dest);
     const src_address = @intFromPtr(src);
 
-    if (src_address < dest_address and src_address + len > dest_address) {
+    if (src_address < dest_address) {
         copyBackwards(dest.?, src.?, len);
     } else {
         copyForwards(dest.?, src.?, len);