diff --git a/src/sizes.rs b/src/sizes.rs
index d72a248..43cb00e 100644
--- a/src/sizes.rs
+++ b/src/sizes.rs
@@ -567,6 +567,7 @@ impl_array_sizes_with_import! {
     510 => U510,
     511 => U511,
     512 => U512,
+    513 => U513,
     521 => U521,
     522 => U522,
     528 => U528,