1 files changed, 1 insertions, 1 deletions

diff --git a/src/frame.c b/src/frame.c
index e17c8acfc3c..2dbbb37289b 100644
--- a/src/frame.c
+++ b/src/frame.c
@@ -1310,7 +1310,7 @@ candidate_frame (Lisp_Object candidate, Lisp_Object frame, Lisp_Object minibuf)
                      FRAME_FOCUS_FRAME (c)))
             return candidate;
         }
-      else if (XFASTINT (minibuf) == 0)
+      else if (INTEGERP (minibuf) && XINT (minibuf) == 0)
         {
           if (FRAME_VISIBLE_P (c) || FRAME_ICONIFIED_P (c))
             return candidate;