diff --git a/main.nf b/main.nf
index 96dfcda..bef41e6 100644
--- a/main.nf
+++ b/main.nf
@@ -34,10 +34,6 @@ workflow {
     ch_str = channel.of(params.str)
     ch_chunks = split_text(ch_str)
     ch_upper = convert_to_upper(ch_chunks.flatten())
-
-    publish:
-    lower = ch_chunks.flatten()
-    upper = ch_upper
 }
 
 output {