diff --git a/examples/flaskr/README b/examples/flaskr/README
index bdf9198334..466edab608 100644
--- a/examples/flaskr/README
+++ b/examples/flaskr/README
@@ -15,7 +15,7 @@
 
       2. Instruct flask to use the right application
 
-         export FLASK_APP=flaskr
+         export FLASK_APP=flaskr.py
 
       3. initialize the database with this command:
 
diff --git a/examples/minitwit/README b/examples/minitwit/README
index a2a7f39555..d125c0582b 100644
--- a/examples/minitwit/README
+++ b/examples/minitwit/README
@@ -16,7 +16,7 @@
 
       2. tell flask about the right application:
 
-         export FLASK_APP=minitwit
+         export FLASK_APP=minitwit.py
 
       2. fire up a shell and run this: