diff --git a/llvm/include/llvm-c/Core.h b/llvm/include/llvm-c/Core.h
index 9ac1c9c54b3a..148bc7234194 100644
--- a/llvm/include/llvm-c/Core.h
+++ b/llvm/include/llvm-c/Core.h
@@ -409,10 +409,12 @@ unsigned LLVMGetVectorSize(LLVMTypeRef VectorTy);
 LLVMTypeRef LLVMVoidTypeInContext(LLVMContextRef C);
 LLVMTypeRef LLVMLabelTypeInContext(LLVMContextRef C);
 LLVMTypeRef LLVMOpaqueTypeInContext(LLVMContextRef C);
+LLVMTypeRef LLVMX86MMXTypeInContext(LLVMContextRef C);
 
 LLVMTypeRef LLVMVoidType(void);
 LLVMTypeRef LLVMLabelType(void);
 LLVMTypeRef LLVMOpaqueType(void);
+LLVMTypeRef LLVMX86MMXType(void);
 
 /* Operations on type handles */
 LLVMTypeHandleRef LLVMCreateTypeHandle(LLVMTypeRef PotentiallyAbstractTy);