diff --git a/src/window.c b/src/window.c
index 2e12043..fda42e9 100644
--- a/src/window.c
+++ b/src/window.c
@@ -2485,7 +2485,7 @@
  * "aucmd_win[]").
  * Returns FALSE if there is a window, possibly in another tab page.
  */
-    static int
+    int
 last_window(void)
 {
     return (one_window() && first_tabpage->tp_next == NULL);