diff --git a/scripts/prepare.sh b/scripts/prepare.sh
index 3d85072..7151b2f 100644
--- a/scripts/prepare.sh
+++ b/scripts/prepare.sh
@@ -6,7 +6,7 @@
 
 # settings
 FL_RAM=256
-FL_HDD=50
+FL_HDD=20
 FL_CPU=1
 
 
@@ -100,6 +100,7 @@
     if [ -z "$keypair_id" ] ; then
         echo "Creating server group $SERV_GROUP. Key would be stored into $KEY_FILE_NAME"
         nova keypair-add "$KEYPAIR_NAME" > "$KEY_FILE_NAME"
+        chmod og= "$KEY_FILE_NAME"
     fi
 
     echo "Adding rules for ping and ssh"