diff --git a/Manual.md b/Manual.md
index 8b22078..2baf42a 100644
--- a/Manual.md
+++ b/Manual.md
@@ -23,5 +23,6 @@ The top bar contains the most important controls:
 * The frequency selector is used to tune the VFO and SDR to the desired frequency.
 * The tuning mode select allows to switch between normal tuning (the offset of the VFO can change and the SDR only retunes when required) or center tuning (where the VFO stays in the middle and the SDR does all the work).
 * The SNR meter shows the [signal to noise ratio](https://en.wikipedia.org/wiki/Signal-to-noise_ratio) in decibels of the selected VFO.
+* The icon shows the credits and build version of the software when clicked.
 
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