diff --git a/README.md b/README.md
index 6c2380f..c758d01 100644
--- a/README.md
+++ b/README.md
@@ -52,7 +52,7 @@ The command-line interface can be called like this:
 
 ```sh
 eynollah \
-  -i <single image file> | -si <directory containing image files> \
+  -i <single image file> | -di <path to directory containing image files> \
   -o <output directory> \
   -m <path to directory containing model files> \
      [OPTIONS]