diff --git a/src/tinyformat.h b/src/tinyformat.h
index 73d49a1fe..c6ec0419b 100644
--- a/src/tinyformat.h
+++ b/src/tinyformat.h
@@ -113,7 +113,7 @@ namespace tfm = tinyformat;
 
 // Define for C++11 variadic templates which make the code shorter & more
 // general.  If you don't define this, C++11 support is autodetected below.
-// #define TINYFORMAT_USE_VARIADIC_TEMPLATES
+#define TINYFORMAT_USE_VARIADIC_TEMPLATES
 
 
 //------------------------------------------------------------------------------