diff --git a/Doc.md b/Doc.md
index dce8923..6fd7371 100644
--- a/Doc.md
+++ b/Doc.md
@@ -6,7 +6,7 @@
  * [running.html](http://allmydata.org/source/tahoe/trunk/docs/running.html): how to run it once it is installed
  * [using.html](http://allmydata.org/source/tahoe/trunk/docs/using.html): how to use it once it is running
 
- * [known_issues.txt]source:docs/known_issues.txt things you need to be aware of if you want to rely on Tahoe to store your valuable data.
+ * [known_issues.txt]source:docs/known_issues.txt: things you need to be aware of if you want to rely on Tahoe to store your valuable data.
 
 ## Presentations / Papers
  * The [paper](http://allmydata.org/~warner/pycon-tahoe.html) presented at