diff --git a/README.md b/README.md
index 32e4fee..8124a0c 100644
--- a/README.md
+++ b/README.md
@@ -64,6 +64,7 @@ sudo apt-get install cuda
 
 ```
 sudo apt-get install libsnappy-dev
+sudo apt-get install libgraphicsmagick-dev
 ```
 
 #### Install Torch7