diff --git a/pkg/compose/watch.go b/pkg/compose/watch.go
index bcb92f3bc52..38e01668c93 100644
--- a/pkg/compose/watch.go
+++ b/pkg/compose/watch.go
@@ -294,7 +294,7 @@ func maybeFileEvent(trigger types.Trigger, hostPath string, ignore watch.PathMat
 			return nil
 		}
 		// always use Unix-style paths for inside the container
-		containerPath = path.Join(trigger.Target, rel)
+		containerPath = path.Join(trigger.Target, filepath.ToSlash(rel))
 	}
 
 	return &fileEvent{