diff --git a/README.txt b/README.txt
index 9020fe1..9c6e8ac 100644
--- a/README.txt
+++ b/README.txt
@@ -12,6 +12,9 @@ The teleport will target the teleport (in range) that best matches your viewing
 If you 'use' a teleport (rightclick or double-tap),  you can spend mossy cobblestone to
 instantly teleport to one of the 6 nearest teleports.
 
+Teleports are sometimes erratic. There's a small chance that a teleport will not put you on
+the destination exactly, but one block 'besides' it.
+
 Beware: If you dig a teleport, you only get 1 diamond back, so think before placing!
 
 Credits: