diff --git a/bin/configure-fastly.js b/bin/configure-fastly.js
index 657d83c56..6c2bacf11 100644
--- a/bin/configure-fastly.js
+++ b/bin/configure-fastly.js
@@ -177,10 +177,12 @@ async.auto({
             fastly.activateVersion(results.version, function (err, response) {
                 if (err) throw new Error(err);
                 process.stdout.write('Successfully configured and activated version ' + response.number + '\n');
-                fastly.purgeAll(FASTLY_SERVICE_ID, function (err) {
-                    if (err) throw new Error(err);
-                    process.stdout.write('Purged all.\n');
-                });
+                if (process.env.FASTLY_PURGE_ALL) {
+                    fastly.purgeAll(FASTLY_SERVICE_ID, function (err) {
+                        if (err) throw new Error(err);
+                        process.stdout.write('Purged all.\n');
+                    });
+                }
             });
         }
     }