diff --git a/src/common/utility/tarray.h b/src/common/utility/tarray.h
index 25d6e0e7f..ac9d8beb1 100644
--- a/src/common/utility/tarray.h
+++ b/src/common/utility/tarray.h
@@ -1380,6 +1380,18 @@ public:
 		return n->Pair.Value;
 	}
 
+	template<typename... Args>
+	VT &TryEmplace(const KT key, Args&&... args)
+	{
+		Node *n = FindKey(key);
+		if (n == NULL)
+		{
+			n = NewKey(key);
+			::new(&n->Pair.Value) VT(std::forward<Args>(args)...);
+		}
+		return n->Pair.Value;
+	}
+
 	//=======================================================================
 	//
 	// Remove