diff --git a/Manual-server-installation.md b/Manual-server-installation.md
index 74ace43..97a0baa 100644
--- a/Manual-server-installation.md
+++ b/Manual-server-installation.md
@@ -13,6 +13,8 @@ If your linux distribution has only outdated version of node.js, you can take a
 
 ### Dependencies
 
+There are some dependencies required mainly to compile image support. You can see command for Debian and its derivatives (like Ubuntu) below:
+
 ~~~~
 sudo apt install libpng16-16 libpng-dev pkg-config autoconf libtool build-tools
 ~~~~