diff --git a/install.sh b/install.sh
index 94eed65..a6da219 100755
--- a/install.sh
+++ b/install.sh
@@ -17,8 +17,10 @@ cp ./lib/* /usr/lib/lch
 chmod 755 /usr/bin/lch
 echo " Copied lch in /usr/bin"
 
-if [ -z "$MANPATH" ];then
+if [ -z "$MANPATH" ] && [ $(manpath 2> /dev/null) ];then
   MANPATH=$(manpath)
+else
+  MANPATH="/usr/local/man"
 fi
 
 MANDIR=${MANPATH%%:*}/man1 
diff --git a/uninstall.sh b/uninstall.sh
old mode 100644
new mode 100755