diff --git a/src/ds/address.h b/src/ds/address.h
index c1c837d..cc73e49 100644
--- a/src/ds/address.h
+++ b/src/ds/address.h
@@ -51,8 +51,7 @@ namespace snmalloc
   {
     static_assert(bits::next_pow2_const(alignment) == alignment);
 
-    return ((static_cast<size_t>(address_cast(p)) | size) & (alignment - 1)) ==
-      0;
+    return ((address_cast(p) | size) & (alignment - 1)) == 0;
   }
 
   /**