diff --git a/tools/croppa/README.md b/tools/croppa/README.md
index 75a7ad5..b53ff45 100644
--- a/tools/croppa/README.md
+++ b/tools/croppa/README.md
@@ -48,19 +48,19 @@ Specify the y coordinate for the start of the crop in pixels.
 options
 -------
 
-**--dx <dx>**
+**--dx** <dx>
 
 Specify the number of pixels added to x after each crop
 
-**--dy <dy>**
+**--dy** <dy>
 
 Specify the number of pixels added to y after each crop
 
-**--rows <rows>**
+**--rows** <rows>
 
 Specify the number rows of images that will be cropped (total number of images will be rows*cols)
 
-**--colss <cols>**
+**--cols** <cols>
 
 Specify the number columns of images that will be cropped (total number of images will be rows*cols)