diff --git a/mirrord/layer/src/file/mapper.rs b/mirrord/layer/src/file/mapper.rs
index c8098cfeeb9..d4a59bd99d8 100644
--- a/mirrord/layer/src/file/mapper.rs
+++ b/mirrord/layer/src/file/mapper.rs
@@ -35,7 +35,7 @@ impl FileRemapper {
             let (pattern, value) = self
                 .mapping
                 .get(index)
-                .expect("RegexSet matches returned an imposible index");
+                .expect("RegexSet matches returned an impossible index");
 
             pattern.replace(path_str, value)
         } else {