1 files changed, 2 insertions, 3 deletions
diff --git a/src/nvim/ui.c b/src/nvim/ui.c
index 241d70e1b1..f4d3cd987d 100644
--- a/src/nvim/ui.c
+++ b/src/nvim/ui.c
@@ -437,9 +437,8 @@ void ui_puts(uint8_t *str)
 
     if (p_wd) {  // 'writedelay': flush & delay each time.
       ui_flush();
-      assert(p_wd >= 0
-             && (sizeof(long) <= sizeof(uint64_t) || p_wd <= UINT64_MAX));
-      os_delay((uint64_t)p_wd, false);
+      uint64_t wd = (uint64_t)labs(p_wd);
+      os_delay(wd, false);
     }
   }
 }