diff --git a/lib/AsmParser/Lexer.l b/lib/AsmParser/Lexer.l
index 7c524a2..9f7a55e 100644
--- a/lib/AsmParser/Lexer.l
+++ b/lib/AsmParser/Lexer.l
@@ -208,7 +208,7 @@
 hidden          { return HIDDEN; }
 extern_weak     { return EXTERN_WEAK; }
 external        { return EXTERNAL; }
-implementation  { return IMPLEMENTATION; }
+checkpoint      { return CHECKPOINT; }
 zeroinitializer { return ZEROINITIALIZER; }
 \.\.\.          { return DOTDOTDOT; }
 undef           { return UNDEF; }
diff --git a/lib/AsmParser/llvmAsmParser.y b/lib/AsmParser/llvmAsmParser.y
index 4271273..6bca424 100644
--- a/lib/AsmParser/llvmAsmParser.y
+++ b/lib/AsmParser/llvmAsmParser.y
@@ -1039,7 +1039,7 @@
 %type <UIntVal> OptAlign OptCAlign
 %type <StrVal> OptSection SectionString
 
-%token IMPLEMENTATION ZEROINITIALIZER TRUETOK FALSETOK BEGINTOK ENDTOK
+%token CHECKPOINT ZEROINITIALIZER TRUETOK FALSETOK BEGINTOK ENDTOK
 %token DECLARE DEFINE GLOBAL CONSTANT SECTION VOLATILE
 %token TO DOTDOTDOT NULL_TOK UNDEF INTERNAL LINKONCE WEAK APPENDING
 %token DLLIMPORT DLLEXPORT EXTERN_WEAK
@@ -1942,7 +1942,7 @@
   | MODULE ASM_TOK AsmBlock {
     CHECK_FOR_ERROR
   }  
-  | IMPLEMENTATION {
+  | CHECKPOINT {
     // Emit an error if there are any unresolved types left.
     if (!CurModule.LateResolveTypes.empty()) {
       const ValID &DID = CurModule.LateResolveTypes.begin()->first;