diff --git a/source/eventy/engine.d b/source/eventy/engine.d
index 6c58c0e..d5e915f 100644
--- a/source/eventy/engine.d
+++ b/source/eventy/engine.d
@@ -13,7 +13,7 @@ import eventy.exceptions;
 import std.stdio;
 
 /* TODO: Move elsewhere, this thing thinks it's a delegate in the unit test, idk why */
-void runner(Event e)
+private void runner(Event e)
 {
     import std.stdio;