diff --git a/chertex.sh b/chertex.sh
index 1212bbc..0704f26 100755
--- a/chertex.sh
+++ b/chertex.sh
@@ -145,7 +145,7 @@ aux_los="*.los"
 aux_lot="*.lot"
 aux_maf="*.maf"  # minitoc
 aux_mtc="*.mtc*" # minitoc
-aux_out="*.out"
+aux_out="*.out"  # hyperref
 aux_lox="*.lox"
 aux_make="*.makefile"
 aux_map="*.map"