diff --git a/examples/flaskr/README b/examples/flaskr/README
index 5d09faa7..ab668d67 100644
--- a/examples/flaskr/README
+++ b/examples/flaskr/README
@@ -21,7 +21,7 @@
 
       3. instruct flask to use the right application
 
-         export FLASK_APP=flaskr.factory:create_app()
+         export FLASK_APP="flaskr.factory:create_app()"
 
       4. initialize the database with this command: