diff --git a/README.md b/README.md
index 7506d093..149b7cf2 100644
--- a/README.md
+++ b/README.md
@@ -134,7 +134,7 @@ If you want to use CTL together with the TIFF image file format, you should down
 
 * Ubuntu
 
-        $ sudo apt-get install libtiff4
+        $ sudo apt-get install libtiff-dev
 
 * Redhat