diff --git a/frappe/templates/pages/desk.html b/frappe/templates/pages/desk.html
index 9cb7176430..64c146a2e3 100644
--- a/frappe/templates/pages/desk.html
+++ b/frappe/templates/pages/desk.html
@@ -48,7 +48,7 @@
 	window._version_number = "{{ build_version }}";
 	// browser support
 	window.app = true;
-	window.dev_server = "{{ dev_server }}";
+	window.dev_server = {{ dev_server }};
 
 	if(!window.frappe) window.frappe = {};
 
diff --git a/frappe/utils/jinja.py b/frappe/utils/jinja.py
index 56854ed4e6..345b1edf76 100644
--- a/frappe/utils/jinja.py
+++ b/frappe/utils/jinja.py
@@ -101,7 +101,7 @@ def get_allowed_functions_for_jenv():
 		"get_shade": get_shade,
 		"scrub": scrub,
 		"guess_mimetype": mimetypes.guess_type,
-		"dev_server": os.environ.get('DEV_SERVER', False)
+		"dev_server": 1 if os.environ.get('DEV_SERVER', False) else 0
 	}
 
 def get_jloader():