diff --git a/docs/DEVELOPMENT-OSX-NATIVE.md b/docs/DEVELOPMENT-OSX-NATIVE.md
index 6fe56917615..6f2fc9fe87b 100644
--- a/docs/DEVELOPMENT-OSX-NATIVE.md
+++ b/docs/DEVELOPMENT-OSX-NATIVE.md
@@ -248,6 +248,7 @@ In addition to ImageMagick we also need to install some other image related
 software:
 
 ```sh
+brew install gifsicle
 brew install optipng
 npm install -g svgo 
 ```
@@ -255,8 +256,7 @@ npm install -g svgo
 Install jhead
 
 ```sh
-curl -O "http://www.sentex.net/~mwandel/jhead/jhead-2.97.tar.gz"
-tar xzf jhead-2.97.tar.gz
+curl "http://www.sentex.net/~mwandel/jhead/jhead-2.97.tar.gz" | tar xzf -
 cd jhead-2.97
 make
 make install