diff --git a/Foundation/include/Poco/Dynamic/Struct.h b/Foundation/include/Poco/Dynamic/Struct.h
index 7f419cad3..83875785e 100644
--- a/Foundation/include/Poco/Dynamic/Struct.h
+++ b/Foundation/include/Poco/Dynamic/Struct.h
@@ -190,7 +190,7 @@ public:
 	std::string toString()
 	{
 		std::string str;
-		Var(*this).convert<std::string>(str);
+		Var(*this).template convert<std::string>(str);
 		return str;
 	}