diff --git a/src/dlangui/platforms/sdl/sdlapp.d b/src/dlangui/platforms/sdl/sdlapp.d
old mode 100644
new mode 100755
index d0e7c40b..04750abe
--- a/src/dlangui/platforms/sdl/sdlapp.d
+++ b/src/dlangui/platforms/sdl/sdlapp.d
@@ -23,7 +23,7 @@ static if (BACKEND_SDL):
 import core.runtime;
 import std.conv;
 import std.string;
-import std.utf : toUTF32;
+import std.utf : toUTF32, toUTF16z;
 import std.stdio;
 import std.algorithm;
 import std.file;