diff --git a/exercises/structs/structs3.rs b/exercises/structs/structs3.rs
index 8d8b471..a80d062 100644
--- a/exercises/structs/structs3.rs
+++ b/exercises/structs/structs3.rs
@@ -31,7 +31,7 @@ impl Package {
     }
 
     fn get_fees(&self, cents_per_gram: i32) -> ??? {
-        // Something goes here... 
+        // Something goes here...
     }
 }