diff --git a/core/core-popup.el b/core/core-popup.el
index 56df2b13d..500d81b2b 100644
--- a/core/core-popup.el
+++ b/core/core-popup.el
@@ -33,7 +33,7 @@
           ("*Org Links*"           :position bottom :height 2)
 
           ;; REPLs
-          ((lambda (buffer) (with-current-buffer buffer (derived-mode-p 'comint-mode)))
+          ((lambda (buffer) (with-current-buffer buffer (bound-and-true-p repl-toggle-mode)))
            :position bottom :height 0.2 :stick t)
           ))