diff --git a/src/librustc/session/config.rs b/src/librustc/session/config.rs
index 245663494ddef..489197e038176 100644
--- a/src/librustc/session/config.rs
+++ b/src/librustc/session/config.rs
@@ -1239,9 +1239,9 @@ options! {DebuggingOptions, DebuggingSetter, basic_debugging_options,
           "print the result of the translation item collection pass"),
     mir_opt_level: usize = (1, parse_uint, [TRACKED],
           "set the MIR optimization level (0-3, default: 1)"),
-    mutable_noalias: bool = (false, parse_bool, [UNTRACKED],
+    mutable_noalias: bool = (false, parse_bool, [TRACKED],
           "emit noalias metadata for mutable references"),
-    arg_align_attributes: bool = (false, parse_bool, [UNTRACKED],
+    arg_align_attributes: bool = (false, parse_bool, [TRACKED],
           "emit align metadata for reference arguments"),
     dump_mir: Option<String> = (None, parse_opt_string, [UNTRACKED],
           "dump MIR state at various points in translation"),