diff --git a/llvm/lib/DebugInfo/CodeView/DebugCrossImpSubsection.cpp b/llvm/lib/DebugInfo/CodeView/DebugCrossImpSubsection.cpp
index 9a3d3e3..bf9dd7c 100644
--- a/llvm/lib/DebugInfo/CodeView/DebugCrossImpSubsection.cpp
+++ b/llvm/lib/DebugInfo/CodeView/DebugCrossImpSubsection.cpp
@@ -79,7 +79,7 @@
   for (const auto &M : Mappings)
     Ids.push_back(&M);
 
-  std::sort(Ids.begin(), Ids.end(), [this](const T &L1, const T &L2) {
+  llvm::sort(Ids.begin(), Ids.end(), [this](const T &L1, const T &L2) {
     return Strings.getIdForString(L1->getKey()) <
            Strings.getIdForString(L2->getKey());
   });