diff --git a/Dockerfile b/Dockerfile
index 84b9e97..ceaddb9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -17,7 +17,7 @@ RUN chmod 0755 /start.sh
 ENV VARNISH_PORT 80
 ENV VARNISH_MALLOC 100M
 ADD src/default.vcl /etc/varnish/default.vcl
-COPY src/nginx-https-proxy.conf /etc/nginx/sites-available/default
+COPY src/nginx-https-proxy.tmpl /etc/nginx/sites-available/default
 
 # Expose the port and start the proxies
 EXPOSE 80
diff --git a/src/nginx-https-proxy.conf b/src/nginx-https-proxy.tmpl
similarity index 57%
rename from src/nginx-https-proxy.conf
rename to src/nginx-https-proxy.tmpl
index 3f8f0e4..42b1dfc 100644
--- a/src/nginx-https-proxy.conf
+++ b/src/nginx-https-proxy.tmpl
@@ -6,8 +6,9 @@ server {
   }
   listen 8000;
   location / {
-    proxy_set_header HOST api.github.com;
+    #GITHUB_ENTERPRISE_REWRITE rewrite ^/(.*) /api/v3/$1 break;
+    proxy_set_header HOST {GITHUB_DOMAIN};
     proxy_set_header "User-Agent" "runnable-github-proxy";
-    proxy_pass https://api.github.com;
+    proxy_pass {GITHUB_PROTOCOL}://{GITHUB_DOMAIN};
   }
 }
diff --git a/src/start.sh b/src/start.sh
index 55483b5..5de4885 100644
--- a/src/start.sh
+++ b/src/start.sh
@@ -3,6 +3,10 @@
 # Fail fast if any command fails
 set -e
 
+sed -i s/{GITHUB_DOMAIN}/${GITHUB_DOMAIN}/ /etc/nginx/sites-available/default
+sed -i s/{GITHUB_PROTOCOL}/${GITHUB_PROTOCOL}/ /etc/nginx/sites-available/default
+if $IS_GITHUB_ENTERPRISE; then sed -i 's/#GITHUB_ENTERPRISE_REWRITE //' /etc/nginx/sites-available/default; fi
+
 # Start nginx
 service nginx start