diff --git a/include/parameters b/include/parameters
index 3791ba03..6163b138 100644
--- a/include/parameters
+++ b/include/parameters
@@ -211,7 +211,7 @@
           ;;
 
           # Define a custom plugin directory
-          --plugin-dir | --plugins-dir)
+          --plugindir | --plugin-dir | --plugins-dir)
              shift
              PLUGINDIR=$1
              LASTCHAR=`echo $1 | awk '{ print substr($0, length($0))}'`