diff --git a/project.clj b/project.clj
index 978cefa..158185e 100644
--- a/project.clj
+++ b/project.clj
@@ -1,4 +1,4 @@
-(defproject fleet "0.10.1"
+(defproject fleet "0.10.1-dev"
   :description "Templating System for Clojure"
   :url "http://github.com/Flamefork/fleet"
   :license {:name "MIT License"
diff --git a/src/fleet/runtime.clj b/src/fleet/runtime.clj
index 6d51796..06f9ff8 100644
--- a/src/fleet/runtime.clj
+++ b/src/fleet/runtime.clj
@@ -24,6 +24,8 @@
   (screen [s escaping-fn] "Process and collect template string(s)."))
 
 (extend-protocol Screenable
+  nil
+    (screen [_ _] nil)
   CharSequence
     (screen [s f] (raw f (if (raw? f s) s (f s))))
   Sequential
@@ -36,4 +38,4 @@
   [escaping-fn]
   {:raw  (partial raw  escaping-fn)
    :raw? (partial raw? escaping-fn)
-   :screen #(screen %1 escaping-fn)})
\ No newline at end of file
+   :screen #(screen %1 escaping-fn)})