diff --git a/app.yaml b/app.yaml
index 235f12d..aed7c86 100644
--- a/app.yaml
+++ b/app.yaml
@@ -2,3 +2,4 @@ name: "christine"
 
 dependencies:
  - moonscript
+ - github
diff --git a/layout/bootstrap.moon b/layout/bootstrap.moon
index b7d2053..1b9568c 100644
--- a/layout/bootstrap.moon
+++ b/layout/bootstrap.moon
@@ -54,6 +54,9 @@ class Layout extends Widget
           p class: "text-muted", ->
             text "Christine Cadence Dodrill - #{os.date "%Y"}"
 
+            if os.getenv "GIT_REV"
+              text " revision #{os.getenv("GIT_REV")\sub 1,8}"
+
   body: =>
     div class: "container", ->
       if @flash
diff --git a/nginx.conf b/nginx.conf
index fb218d7..ae46ff7 100644
--- a/nginx.conf
+++ b/nginx.conf
@@ -4,6 +4,7 @@ daemon off;
 
 env PORT;
 env GITHUB_TOKEN;
+env GIT_REV;
 
 events {
   worker_connections 1024;