diff --git a/scripts/test-projects.test-support.mjs b/scripts/test-projects.test-support.mjs
index 95819ea74138..505b33f88db9 100644
--- a/scripts/test-projects.test-support.mjs
+++ b/scripts/test-projects.test-support.mjs
@@ -434,6 +434,7 @@ const TOOLING_SOURCE_TEST_TARGETS = new Map([
     ["test/scripts/package-acceptance-workflow.test.ts"],
   ],
   ["scripts/build-all.mjs", ["test/scripts/build-all.test.ts"]],
+  ["scripts/build-stamp.mjs", ["src/infra/build-stamp.test.ts"]],
   ["scripts/crabbox-wrapper.mjs", ["test/scripts/crabbox-wrapper.test.ts"]],
   ["scripts/github/barnacle-auto-response.mjs", ["test/scripts/barnacle-auto-response.test.ts"]],
   ["scripts/changed-lanes.mjs", ["test/scripts/changed-lanes.test.ts"]],
diff --git a/test/scripts/test-projects.test.ts b/test/scripts/test-projects.test.ts
index 2000a6713109..a03aaac50515 100644
--- a/test/scripts/test-projects.test.ts
+++ b/test/scripts/test-projects.test.ts
@@ -1064,6 +1064,13 @@ describe("scripts/test-projects changed-target routing", () => {
     });
   });
 
+  it("keeps build stamp script edits on the build stamp regression test", () => {
+    expect(resolveChangedTestTargetPlan(["scripts/build-stamp.mjs"])).toEqual({
+      mode: "targets",
+      targets: ["src/infra/build-stamp.test.ts"],
+    });
+  });
+
   it("keeps CI workflow edits on workflow guard tests", () => {
     expect(resolveChangedTestTargetPlan([".github/workflows/ci.yml"])).toEqual({
       mode: "targets",