diff --git a/include/llvm/ADT/IntervalMap.h b/include/llvm/ADT/IntervalMap.h
index 3f71e721f71..ccc33327ffb 100644
--- a/include/llvm/ADT/IntervalMap.h
+++ b/include/llvm/ADT/IntervalMap.h
@@ -1141,7 +1141,7 @@ protected:
 
   Leaf &treeLeaf() const {
     assert(branched() && path.size() == map->height);
-    return path.back().first.get<Leaf>();
+    return path.back().first.template get<Leaf>();
   }
   unsigned treeLeafSize() const {
     assert(branched() && path.size() == map->height);