diff --git a/src/main.rs b/src/main.rs
index c9abe05..814bd7b 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -38,7 +38,7 @@ fn check_collisions(
 ) -> Result<(), String> {
     match h.get(&r.p) {
         Some(&x) => Err(format!(
-            "The robot id: {} collided with robot id: {} in position: ({};{}).",
+            "The robot id: {} collided with robot id: {} in position: ({};{}) !",
             &r.id, x, &r.p.x, &r.p.y
         )),
         None => Ok(()),