diff --git a/check_packages2install-pkgmanager/yum.sh b/check_packages2install-pkgmanager/yum.sh
index ea7af3305a061545e33b5de05cf8ecda30129b06..4ce9e8d72e616e0437f2ed8e8145e5ced5d82a04 100644
--- a/check_packages2install-pkgmanager/yum.sh
+++ b/check_packages2install-pkgmanager/yum.sh
@@ -26,7 +26,8 @@ function yum.getUpdates(){
 function yum.getPackageList(){
     local iStart=3
     # detect number of line containing "Obsoleting Packages"
-    typeset -i iEnd=$( echo "$packagemanOut" | grep -n '^Obsoleting Packages' | cut -f 1 -d ':' )-1
+    typeset -i local iEnd
+    iEnd=$( echo "$packagemanOut" | grep -n '^Obsoleting Packages' | cut -f 1 -d ':' )-1
 
     local sEnd=$iEnd
     test "$iEnd" = "-1" && sEnd='$'