diff --git a/rust/binaryninja-derive/src/lib.rs b/rust/binaryninja-derive/src/lib.rs
index 0024d11a7..551212ac2 100644
--- a/rust/binaryninja-derive/src/lib.rs
+++ b/rust/binaryninja-derive/src/lib.rs
@@ -124,11 +124,11 @@ impl Repr {
                             let content;
                             parenthesized!(content in meta.input);
                             align = Some(content.parse::<LitInt>()?);
-                        } else if ident_in_list(ident, ["u8", "u16", "u32", "u64"]) {
+                        } else if ident_in_list(ident, ["u8", "u16", "u32", "u64", "u128"]) {
                             primitive = Some((meta.path.clone(), false));
-                        } else if ident_in_list(ident, ["i8", "i16", "i32", "i64"]) {
+                        } else if ident_in_list(ident, ["i8", "i16", "i32", "i64", "i128"]) {
                             primitive = Some((meta.path.clone(), true));
-                        } else if ident_in_list(ident, ["usize", "isize", "u128", "i128"]) {
+                        } else if ident_in_list(ident, ["usize", "isize"]) {
                             return Err(ident
                                 .span()
                                 .error(format!("`repr({ident})` types are not supported"))
diff --git a/rust/src/types.rs b/rust/src/types.rs
index 755d857ec..ac0020dad 100644
--- a/rust/src/types.rs
+++ b/rust/src/types.rs
@@ -716,10 +716,12 @@ abstract_type! {
     u16 => Type::int(2, false),
     u32 => Type::int(4, false),
     u64 => Type::int(8, false),
+    u128 => Type::int(16, false),
     i8 => Type::int(1, true),
     i16 => Type::int(2, true),
     i32 => Type::int(4, true),
     i64 => Type::int(8, true),
+    i128 => Type::int(16, true),
     f32 => Type::float(4),
     f64 => Type::float(8)
 }