diff --git a/emacs-lisp/popper.org b/emacs-lisp/popper.org
index 10bd148..4e112aa 100644
--- a/emacs-lisp/popper.org
+++ b/emacs-lisp/popper.org
@@ -28,6 +28,7 @@ Enable ~popper~, a better version of ~popwin~, which might actually work. It gro
             "^\\*Ement compose.*\\*$"
             "^\\*Org Export Dispatcher\\*$"
             "^\\*Org Select\\*$"
+            "^\\*R:[^\\*]+\\*$"
             haskell-interactive-mode
             help-mode
             compilation-mode