diff --git a/src/etc/kate/rust.xml b/src/etc/kate/rust.xml
index 6a751bd1c858..44d0ce1a27fc 100644
--- a/src/etc/kate/rust.xml
+++ b/src/etc/kate/rust.xml
@@ -49,6 +49,7 @@
 		<item> Copy </item>
 		<item> Send </item>
 		<item> Owned </item>
+		<item> Sized </item>
 		<item> Eq </item>
 		<item> Ord </item>
 		<item> Num </item>
diff --git a/src/etc/vim/syntax/rust.vim b/src/etc/vim/syntax/rust.vim
index cd794df0a8d8..5c08fdfecca5 100644
--- a/src/etc/vim/syntax/rust.vim
+++ b/src/etc/vim/syntax/rust.vim
@@ -44,7 +44,7 @@ syn keyword   rustType        size_t ptrdiff_t clock_t time_t
 syn keyword   rustType        c_longlong c_ulonglong intptr_t uintptr_t
 syn keyword   rustType        off_t dev_t ino_t pid_t mode_t ssize_t
 
-syn keyword   rustTrait       Const Copy Send Owned " inherent traits
+syn keyword   rustTrait       Const Copy Send Owned Sized " inherent traits
 syn keyword   rustTrait       Eq Ord Num Ptr
 syn keyword   rustTrait       Drop Add Sub Mul Quot Rem Neg BitAnd BitOr
 syn keyword   rustTrait       BitXor Shl Shr Index