diff --git a/llvm/lib/CodeGen/LocalStackSlotAllocation.cpp b/llvm/lib/CodeGen/LocalStackSlotAllocation.cpp
index c0da37ed..e95fc7f 100644
--- a/llvm/lib/CodeGen/LocalStackSlotAllocation.cpp
+++ b/llvm/lib/CodeGen/LocalStackSlotAllocation.cpp
@@ -335,7 +335,7 @@
 
   // Sort the frame references by local offset.
   // Use frame index as a tie-breaker in case MI's have the same offset.
-  std::sort(FrameReferenceInsns.begin(), FrameReferenceInsns.end());
+  llvm::sort(FrameReferenceInsns.begin(), FrameReferenceInsns.end());
 
   MachineBasicBlock *Entry = &Fn.front();