diff --git a/src/impls/primitives.rs b/src/impls/primitives.rs
index 1a52820..f3d6401 100644
--- a/src/impls/primitives.rs
+++ b/src/impls/primitives.rs
@@ -23,9 +23,8 @@ macro_rules! impl_integer {
     };
 }
 
-
-impl_integer!(u8, u16, u32, u64, u128);
-impl_integer!(i8, i16, i32, i64, i128);
+impl_integer!(u8, u16, u32, u64, u128, usize);
+impl_integer!(i8, i16, i32, i64, i128, isize);
 impl_integer!(f32, f64);
 
 //╶───╴Boolean╶──────────────────────────────────────────────────────────────╴