diff --git a/docs/graphics-protocol.rst b/docs/graphics-protocol.rst
index c32f08f08..f16b9b9c0 100644
--- a/docs/graphics-protocol.rst
+++ b/docs/graphics-protocol.rst
@@ -238,6 +238,10 @@ Value of `t`          Meaning
                       close it on Windows.
 ==================    ============
 
+When opening files, the terminal emulator must follow symlinks. In case of
+symlink loops or too many symlinks, it should fail and respond with an error,
+similar to reporting any other kind of I/O error.
+
 Local client
 ^^^^^^^^^^^^^^