diff --git a/workflow/main.nf b/workflow/main.nf
index a6f486f2598a076c900eb68816ea2f2e131b225e..8aa4622b3bead6d4e843fdd8ab83bdaafff13c4a 100644
--- a/workflow/main.nf
+++ b/workflow/main.nf
@@ -472,7 +472,7 @@ process plotProfile {
 
   output:
 
-  file(".{png,gz}") into plotProfile
+  file '*.{png,gz}' into plotProfile
 
   when: