diff --git a/update.texlive b/update.texlive
index 3068792..91043a3 100644
--- a/update.texlive
+++ b/update.texlive
@@ -35,8 +35,7 @@ test -d /var/run/texlive || exit 0
 typeset -r OLDIFS="$IFS"
 typeset -i rc=0
 typeset -i nl=0
-#: ${VERBOSE=true}
-: ${VERBOSE=debug}
+: ${VERBOSE=true}
 umask 022
 
 #
@@ -556,7 +555,7 @@ for run in /var/run/texlive/run-updmap* ; do
     done < $run
     mktexlsr < /dev/null 1>&4 2>&4
     let rc+=$?
-    yes | updmap-sys --cnffile $cnf_umap --nohash --syncwithtrees < /dev/null 1>&4 2>&4
+    updmap-sys --cnffile $cnf_umap --nohash --syncwithtrees < <(yes) 1>&4 2>&4
     let rc+=$?
     enablemaps $cnf_umap < /dev/null 1>&4 2>&4
     let rc+=$?
@@ -576,7 +575,7 @@ for run in /var/run/texlive/sync-updmap* ; do
     test $VERBOSE = true && { echo -en "\r[ ]Updating TeX font mappings."; let nl++; }
     mktexlsr < /dev/null 1>&4 2>&4
     let rc+=$?
-    yes | updmap-sys --cnffile $cnf_umap --nohash --syncwithtrees < /dev/null 1>&4 2>&4
+    updmap-sys --cnffile $cnf_umap --nohash --syncwithtrees < <(yes) 1>&4 2>&4
     let rc+=$?
     enablemaps $cnf_umap < /dev/null 1>&4 2>&4
     updmap-sys --cnffile $cnf_umap --nohash < /dev/null 1>&4 2>&4