diff --git a/syntax/rust.vim b/syntax/rust.vim
index b5569f61..8c734628 100644
--- a/syntax/rust.vim
+++ b/syntax/rust.vim
@@ -69,8 +69,8 @@ syn match rustMacroVariable "$\w\+"
 syn keyword   rustReservedKeyword alignof become do offsetof priv pure sizeof typeof unsized yield abstract virtual final override macro
 
 " Built-in types {{{2
-syn keyword   rustType        isize usize char bool u8 u16 u32 u64 f32
-syn keyword   rustType        f64 i8 i16 i32 i64 str Self
+syn keyword   rustType        isize usize char bool u8 u16 u32 u64 u128 f32
+syn keyword   rustType        f64 i8 i16 i32 i64 i128 str Self
 
 " Things from the libstd v1 prelude (src/libstd/prelude/v1.rs) {{{2
 " This section is just straight transformation of the contents of the prelude,
@@ -150,10 +150,10 @@ syn region    rustDerive      start="derive(" end=")" contained contains=rustDer
 syn keyword   rustDeriveTrait contained Clone Hash RustcEncodable RustcDecodable Encodable Decodable PartialEq Eq PartialOrd Ord Rand Show Debug Default FromPrimitive Send Sync Copy
 
 " Number literals
-syn match     rustDecNumber   display "\<[0-9][0-9_]*\%([iu]\%(size\|8\|16\|32\|64\)\)\="
-syn match     rustHexNumber   display "\<0x[a-fA-F0-9_]\+\%([iu]\%(size\|8\|16\|32\|64\)\)\="
-syn match     rustOctNumber   display "\<0o[0-7_]\+\%([iu]\%(size\|8\|16\|32\|64\)\)\="
-syn match     rustBinNumber   display "\<0b[01_]\+\%([iu]\%(size\|8\|16\|32\|64\)\)\="
+syn match     rustDecNumber   display "\<[0-9][0-9_]*\%([iu]\%(size\|8\|16\|32\|64\|128\)\)\="
+syn match     rustHexNumber   display "\<0x[a-fA-F0-9_]\+\%([iu]\%(size\|8\|16\|32\|64\|128\)\)\="
+syn match     rustOctNumber   display "\<0o[0-7_]\+\%([iu]\%(size\|8\|16\|32\|64\|128\)\)\="
+syn match     rustBinNumber   display "\<0b[01_]\+\%([iu]\%(size\|8\|16\|32\|64\|128\)\)\="
 
 " Special case for numbers of the form "1." which are float literals, unless followed by
 " an identifier, which makes them integer literals with a method call or field access,