diff --git a/Promethe_scripts/navigation/ReadMe.md b/Promethe_scripts/navigation/ReadMe.md
index 90f82558d232c38b9071790ab412a6dd2aa508d1..0508828afcb3ef5e7e06224e6b9d943aef8021e4 100644
--- a/Promethe_scripts/navigation/ReadMe.md
+++ b/Promethe_scripts/navigation/ReadMe.md
@@ -21,5 +21,5 @@ You can then run coeos and/or promethe by using the GUI.
 
 # Warning
 
-The drone script contains activable motor controls (like compass control), never activate it at the same time as the image processing script if the latter controls the same axis. You never know what could happen if two scripts try to control the same commands...
+The drone script contains activable motor controls (like compass control). If the image processing script controls the same axis as the drone script, make that it does not cause trouble. You never know what could happen if two scripts try to control the same commands...