diff --git a/compiler/gen_dev/src/generic64/mod.rs b/compiler/gen_dev/src/generic64/mod.rs
index e4eb3f5d59..365a56ee5e 100644
--- a/compiler/gen_dev/src/generic64/mod.rs
+++ b/compiler/gen_dev/src/generic64/mod.rs
@@ -1546,8 +1546,7 @@ impl<
 #[macro_export]
 macro_rules! single_register_integers {
     () => {
-        Builtin::Usize
-            | Builtin::Bool
+        Builtin::Bool
             | Builtin::Int(
                 IntWidth::I8
                     | IntWidth::I16