diff --git a/.changeset/soft-drinks-hug.md b/.changeset/soft-drinks-hug.md
new file mode 100644
index 000000000000..6b1051fc8662
--- /dev/null
+++ b/.changeset/soft-drinks-hug.md
@@ -0,0 +1,5 @@
+---
+"@cloudflare/vitest-pool-workers": patch
+---
+
+Support scoped names (e.g. `@scoped/durable-objects`) when using `runInDurableObject()`
diff --git a/fixtures/vitest-pool-workers-examples/durable-objects/vitest.config.ts b/fixtures/vitest-pool-workers-examples/durable-objects/vitest.config.ts
index 47e25a74e4bd..f3ef0cad500b 100644
--- a/fixtures/vitest-pool-workers-examples/durable-objects/vitest.config.ts
+++ b/fixtures/vitest-pool-workers-examples/durable-objects/vitest.config.ts
@@ -2,6 +2,7 @@ import { defineWorkersProject } from "@cloudflare/vitest-pool-workers/config";
 
 export default defineWorkersProject({
 	test: {
+		name: "@scoped/durable-objects",
 		poolOptions: {
 			workers: {
 				singleWorker: true,
diff --git a/packages/vitest-pool-workers/src/pool/index.ts b/packages/vitest-pool-workers/src/pool/index.ts
index 43e52146c89f..78407704bc39 100644
--- a/packages/vitest-pool-workers/src/pool/index.ts
+++ b/packages/vitest-pool-workers/src/pool/index.ts
@@ -178,7 +178,7 @@ interface Project {
 const allProjects = new Map<string /* projectName */, Project>();
 
 function getRunnerName(project: WorkspaceProject, testFile?: string) {
-	const name = `${WORKER_NAME_PREFIX}runner-${project.getName()}`;
+	const name = `${WORKER_NAME_PREFIX}runner-${project.getName().replace(/[^a-z0-9-]/gi, "_")}`;
 	if (testFile === undefined) {
 		return name;
 	}