diff --git a/apps/simple_clock/README.md b/apps/simple_clock/README.md
index d33bde0b6..b52476372 100644
--- a/apps/simple_clock/README.md
+++ b/apps/simple_clock/README.md
@@ -1,6 +1,8 @@
 # Simple Analog Clock #
 
-This app displays a simple, yet stylish, analog clock.
+This app displays a simple, yet stylish, analog clock. It considers the
+currently configured "theme" (and may therefore look different on your watch
+than shown in the screenshot depending on which theme you prefer).
 
 ![](app-screenshot.png)