diff --git a/Ubuntu-11.04-minimal-setup.md b/Ubuntu-11.04-minimal-setup.md
index a9c0d97..b64c135 100644
--- a/Ubuntu-11.04-minimal-setup.md
+++ b/Ubuntu-11.04-minimal-setup.md
@@ -28,6 +28,8 @@ Tracks needs a set of ruby gems. The Gemfile specifies them. There are problems
 
 For hoe, you can fix it by uncommenting it. The test suite will not work though. 
 
+You need to specify whether you use sqlite or mysql as the database backend for Tracks. Thus, edit the Gemfile and uncomment either `gem "sqlite3"` or `gem "mysql"`.
+
 Install the remaining gems by calling bundle:
 
     export PATH=/var/lib/gems/1.8/bin:$PATH