diff --git a/src/063-line-filters/line-filters.go b/src/063-line-filters/line-filters.go
index 8b5b720..f8115bf 100644
--- a/src/063-line-filters/line-filters.go
+++ b/src/063-line-filters/line-filters.go
@@ -38,7 +38,7 @@ func main() {
 
         // Write out the upercased bytes, checking for an error
         // here as well.
-        outBytes := bytes.ToUpper(inBytes)xxxxxxxxxxxxxxxxxxxxx
+        outBytes := bytes.ToUpper(inBytes)
         _, err = out.Write(outBytes)
         if err != nil {
             panic(err)