diff --git a/src/etc/vim/syntax/rust.vim b/src/etc/vim/syntax/rust.vim
index 25e44c62a8a..f40bed8640d 100644
--- a/src/etc/vim/syntax/rust.vim
+++ b/src/etc/vim/syntax/rust.vim
@@ -95,7 +95,7 @@ syn region    rustDeriving    start="deriving(" end=")" contains=rustTrait
 " Number literals
 syn match     rustNumber      display "\<[0-9][0-9_]*\>"
 syn match     rustNumber      display "\<[0-9][0-9_]*\(u\|u8\|u16\|u32\|u64\)\>"
-syn match     rustNumber      display "\<[0-9][0-9_]*\(i8\|i16\|i32\|i64\)\>"
+syn match     rustNumber      display "\<[0-9][0-9_]*\(i\|i8\|i16\|i32\|i64\)\>"
 
 syn match     rustHexNumber   display "\<0x[a-fA-F0-9_]\+\>"
 syn match     rustHexNumber   display "\<0x[a-fA-F0-9_]\+\(u\|u8\|u16\|u32\|u64\)\>"