diff --git a/include/llvm-c/Core.h b/include/llvm-c/Core.h
index 40696e0aceb..a44afcd220b 100644
--- a/include/llvm-c/Core.h
+++ b/include/llvm-c/Core.h
@@ -736,6 +736,7 @@ LLVMValueRef LLVMBuildOr(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
 LLVMValueRef LLVMBuildXor(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
                           const char *Name);
 LLVMValueRef LLVMBuildNeg(LLVMBuilderRef, LLVMValueRef V, const char *Name);
+LLVMValueRef LLVMBuildFNeg(LLVMBuilderRef, LLVMValueRef V, const char *Name);
 LLVMValueRef LLVMBuildNot(LLVMBuilderRef, LLVMValueRef V, const char *Name);
 
 /* Memory */
diff --git a/lib/VMCore/Core.cpp b/lib/VMCore/Core.cpp
index 1dbf5c44efc..77fd4329ff7 100644
--- a/lib/VMCore/Core.cpp
+++ b/lib/VMCore/Core.cpp
@@ -1628,6 +1628,10 @@ LLVMValueRef LLVMBuildNeg(LLVMBuilderRef B, LLVMValueRef V, const char *Name) {
   return wrap(unwrap(B)->CreateNeg(unwrap(V), Name));
 }
 
+LLVMValueRef LLVMBuildFNeg(LLVMBuilderRef B, LLVMValueRef V, const char *Name) {
+  return wrap(unwrap(B)->CreateFNeg(unwrap(V), Name));
+}
+
 LLVMValueRef LLVMBuildNot(LLVMBuilderRef B, LLVMValueRef V, const char *Name) {
   return wrap(unwrap(B)->CreateNot(unwrap(V), Name));
 }