diff --git a/utils/emacs/llvm-mode.el b/utils/emacs/llvm-mode.el
index 37f5d88ff15..9ae0ea45929 100644
--- a/utils/emacs/llvm-mode.el
+++ b/utils/emacs/llvm-mode.el
@@ -25,7 +25,7 @@
    ;; Hex constants
    '("0x[0-9A-Fa-f]+" . font-lock-preprocessor-face)
    ;; Keywords
-   '("begin\\|end\\|true\\|false\\|declare\\|global\\|constant\\|const\\|internal\\|linkonce\\|weak\\|appending\\|uninitialized\\|implementation\\|\\.\\.\\.\\|null\\|to\\|except\\|not\\|target\\|endian\\|little\\|big\\|pointersize\\|volatile" . font-lock-keyword-face)
+   '("begin\\|end\\|true\\|false\\|zeroinitializer\\|declare\\|global\\|constant\\|const\\|internal\\|linkonce\\|weak\\|appending\\|uninitialized\\|implementation\\|\\.\\.\\.\\|null\\|to\\|except\\|not\\|target\\|endian\\|little\\|big\\|pointersize\\|volatile" . font-lock-keyword-face)
    ;; Types
    '("void\\|bool\\|sbyte\\|ubyte\\|u?short\\|u?int\\|u?long\\|float\\|double\\|type\\|label\\|opaque" . font-lock-type-face)
    ;; Arithmetic and Logical Operators
diff --git a/utils/vim/llvm.vim b/utils/vim/llvm.vim
index f122906255a..619aa07fc17 100644
--- a/utils/vim/llvm.vim
+++ b/utils/vim/llvm.vim
@@ -24,7 +24,7 @@ syn keyword llvmStatement phi call cast to select shl shr vaarg vanext
 syn keyword llvmStatement ret br switch invoke unwind
 syn keyword llvmStatement malloc alloca free load store getelementptr
 
-syn keyword llvmStatement begin end true false
+syn keyword llvmStatement begin end true false zeroinitializer
 syn keyword llvmStatement declare global constant const
 syn keyword llvmStatement internal uninitialized external implementation
 syn keyword llvmStatement linkonce weak appending