diff --git a/src/bootstrap/test.rs b/src/bootstrap/test.rs
index ad3fd0d64a307..975650132652f 100644
--- a/src/bootstrap/test.rs
+++ b/src/bootstrap/test.rs
@@ -436,7 +436,6 @@ impl Step for Miri {
 
             // miri tests need to know about the stage sysroot
             cargo.env("MIRI_SYSROOT", miri_sysroot);
-            cargo.env("RUSTC_TEST_SUITE", builder.rustc(compiler));
             cargo.env("RUSTC_LIB_PATH", builder.rustc_libdir(compiler));
             cargo.env("MIRI_PATH", miri);
 
diff --git a/src/tools/miri b/src/tools/miri
index 7f3366288d126..10419b3f2fc62 160000
--- a/src/tools/miri
+++ b/src/tools/miri
@@ -1 +1 @@
-Subproject commit 7f3366288d126408815eeafa8d7cd6e9f3ea56b9
+Subproject commit 10419b3f2fc625bb9d746c16d768e433a894484d