diff --git a/TEST_MAPPING b/TEST_MAPPING
index bafddc5..ae94940 100644
--- a/TEST_MAPPING
+++ b/TEST_MAPPING
@@ -5,11 +5,6 @@
       "path": "external/rust/crates/ryu"
     }
   ],
-  "postsubmit": [
-    {
-      "name": "rand_xorshift_test_tests_mod"
-    }
-  ],
   "presubmit": [
     {
       "name": "rand_xorshift_test_tests_mod"