diff --git a/src/example_1/source/app.d b/src/example_1/source/app.d
index 9bf44d8..7a0f581 100644
--- a/src/example_1/source/app.d
+++ b/src/example_1/source/app.d
@@ -2,5 +2,5 @@ import std.stdio;
 
 void main()
 {
-	writeln("Hello, world!");
+    writeln("Hello, world!");
 }