diff --git a/qcd_function b/qcd_function
index 90bb830..09e476c 100644
--- a/qcd_function
+++ b/qcd_function
@@ -1,4 +1,7 @@
 function cd_history () {
+    local old
+    local p
+    local b
     if [ -z "$1" ]
     then \cd "$HOME"
          return
@@ -15,7 +18,8 @@ alias cd=cd_history
 function qcd() {
     local OPTIND
     local OPTARG
-     
+    local opt
+    
     while getopts aLl:hm opt
     do  case "$opt" in
         a)
@@ -98,6 +102,9 @@ function whenfilechanges() {
     [ -e "$1" ] || { echo $1 not found
         return
     }
+    local fname
+    local otime
+    local ntime
     
     fname=$1
     shift 1