diff --git a/vlib/v/pref/pref.v b/vlib/v/pref/pref.v
index 055f3d84ed..37b0a13ee6 100644
--- a/vlib/v/pref/pref.v
+++ b/vlib/v/pref/pref.v
@@ -220,6 +220,7 @@ pub fn parse_args(known_external_commands []string, args []string) (&Preferences
 						exit(1)
 					}
 				}
+				i++
 			}
 			'-show-timings' {
 				res.show_timings = true