diff --git a/experimental/xx-text-input/xx-text-input-v3.xml b/experimental/xx-text-input/xx-text-input-v3.xml
index 6d6ce5c..c95a4c4 100644
--- a/experimental/xx-text-input/xx-text-input-v3.xml
+++ b/experimental/xx-text-input/xx-text-input-v3.xml
@@ -355,7 +355,10 @@
         be hidden when both are equal to -1.
 
         They could be represented by the client as a line if both values are
-        the same, or as a text highlight otherwise.
+        the same, or as a text highlight otherwise. The purpose of such
+        representation is to clearly indicate the region that is being
+        edited inside the pre-edit and shouldn't be confused with text
+        selection.
 
         Values set with this event are double-buffered. They must be applied
         and reset to initial on the next xx_text_input_v3.done event.
diff --git a/unstable/text-input/text-input-unstable-v3.xml b/unstable/text-input/text-input-unstable-v3.xml
index 01c1e21..c47b6a8 100644
--- a/unstable/text-input/text-input-unstable-v3.xml
+++ b/unstable/text-input/text-input-unstable-v3.xml
@@ -374,7 +374,10 @@
         be hidden when both are equal to -1.
 
         They could be represented by the client as a line if both values are
-        the same, or as a text highlight otherwise.
+        the same, or as a text highlight otherwise. The purpose of such
+        representation is to clearly indicate the region that is being
+        edited inside the pre-edit and shouldn't be confused with text
+        selection.
 
         Values set with this event are double-buffered. They must be applied
         and reset to initial on the next zwp_text_input_v3.done event.