diff --git a/modules/lib.sh b/modules/lib.sh
index 666a541..f506326 100644
--- a/modules/lib.sh
+++ b/modules/lib.sh
@@ -40,22 +40,10 @@ function ensurePathOrLogError() {
   }
 }
 
-function checkCommands() {
-  local cmd
-  for cmd in ${(k)cmds}; do
-    if ! which "${cmd}" >&! /dev/null; then
-      local comment=''
-      [ -n "${cmds[$cmd]}" ] && comment=" ${cmds[$cmd]}"
-      lop -- -e "This module needs ${cmd}${comment} to work."
-      return 11
-    fi
-  done
-}
-
 function checkHelpPrerequisites() {
   local -A cmds
   getHelpPrerequisites || return
-  checkCommands
+  checkCommands ${(k)cmds}
 }
 
 function addDocoptsToCmds() {
@@ -73,13 +61,13 @@ whence getHelpPrerequisites >&! /dev/null || function $_() {
 function checkQuestionsPrerequisites() {
   local -A cmds
   getQuestionsPrerequisites || return
-  checkCommands
+  checkCommands ${(k)cmds}
 }
 
 function checkExecPrerequisites() {
   local -A cmds
   getExecPrerequisites || return
-  checkCommands
+  checkCommands ${(k)cmds}
 }
 
 function showQuestions() {
diff --git a/zshlib b/zshlib
index a20db50..174bc62 160000
--- a/zshlib
+++ b/zshlib
@@ -1 +1 @@
-Subproject commit a20db501bde1c640c1faf0d51a366f004564814a
+Subproject commit 174bc6280410ce15bff934c928eef06bc48c332b