diff --git a/utils/vim/llvm.vim b/utils/vim/llvm.vim
index 578aeed..dfdc43e 100644
--- a/utils/vim/llvm.vim
+++ b/utils/vim/llvm.vim
@@ -20,7 +20,7 @@
 syn keyword llvmStatement and or xor
 syn keyword llvmStatement setne seteq setlt setgt setle setge
 
-syn keyword llvmStatement phi call cast shl shr
+syn keyword llvmStatement phi call cast shl shr va_arg
 syn keyword llvmStatement ret br switch invoke
 syn keyword llvmStatement malloc alloca free load store getelementptr