diff --git a/llvm/include/llvm/IR/DIBuilder.h b/llvm/include/llvm/IR/DIBuilder.h
index 1ce0165c251d05..28c70877aa2e8e 100644
--- a/llvm/include/llvm/IR/DIBuilder.h
+++ b/llvm/include/llvm/IR/DIBuilder.h
@@ -181,7 +181,7 @@ namespace llvm {
                                      DIFile *File);
 
     /// Create a single enumerator value.
-    DIEnumerator *createEnumerator(StringRef Name, APSInt Value);
+    DIEnumerator *createEnumerator(StringRef Name, const APSInt &Value);
     DIEnumerator *createEnumerator(StringRef Name, uint64_t Val,
                                    bool IsUnsigned = false);
 
diff --git a/llvm/lib/IR/DIBuilder.cpp b/llvm/lib/IR/DIBuilder.cpp
index c380936d2f6619..8ff4c2182d2df0 100644
--- a/llvm/lib/IR/DIBuilder.cpp
+++ b/llvm/lib/IR/DIBuilder.cpp
@@ -254,7 +254,7 @@ DIEnumerator *DIBuilder::createEnumerator(StringRef Name, uint64_t Val,
                            Name);
 }
 
-DIEnumerator *DIBuilder::createEnumerator(StringRef Name, APSInt Value) {
+DIEnumerator *DIBuilder::createEnumerator(StringRef Name, const APSInt &Value) {
   assert(!Name.empty() && "Unable to create enumerator without name");
   return DIEnumerator::get(VMContext, APInt(Value), Value.isUnsigned(), Name);
 }