diff --git a/crates/ty_python_semantic/src/types.rs b/crates/ty_python_semantic/src/types.rs
index bbbc7ae5e2..75021c47b3 100644
--- a/crates/ty_python_semantic/src/types.rs
+++ b/crates/ty_python_semantic/src/types.rs
@@ -11785,7 +11785,7 @@ pub(super) fn determine_upper_bound<'db>(
 // Make sure that the `Type` enum does not grow unexpectedly.
 #[cfg(not(debug_assertions))]
 #[cfg(target_pointer_width = "64")]
-static_assertions::assert_eq_size!(Type, [u8; 16]);
+static_assertions::assert_eq_size!(Type, [u8; 24]);
 
 #[cfg(test)]
 pub(crate) mod tests {