diff --git a/src/ex_cmds2.c b/src/ex_cmds2.c
index f86e6ee..ed3c45f 100644
--- a/src/ex_cmds2.c
+++ b/src/ex_cmds2.c
@@ -3145,8 +3145,8 @@
 	verbose_leave();
     }
 #ifdef STARTUPTIME
-    vim_snprintf(IObuff, IOSIZE, "sourcing %s", fname);
-    time_msg(IObuff, &tv_start);
+    vim_snprintf((char *)IObuff, IOSIZE, "sourcing %s", fname);
+    time_msg((char *)IObuff, &tv_start);
     time_pop(&tv_rel);
 #endif