diff --git a/packages/server/src/server/project-suggestions.test.ts b/packages/server/src/server/project-suggestions.test.ts
index 0a2e07af56..d637ee2ea1 100644
--- a/packages/server/src/server/project-suggestions.test.ts
+++ b/packages/server/src/server/project-suggestions.test.ts
@@ -88,7 +88,8 @@ describe("listProjectSuggestions", () => {
   let gitService: WorkspaceGitServiceImpl;
 
   beforeEach(() => {
-    root = realpathSync(mkdtempSync(path.join(tmpdir(), "project-suggestions-")));
+    // The native realpath expands Windows short names (RUNNER~1), which git reports in full.
+    root = realpathSync.native(mkdtempSync(path.join(tmpdir(), "project-suggestions-")));
     gitService = new WorkspaceGitServiceImpl({
       logger: createTestLogger(),
       paseoHome: path.join(root, ".paseo"),
diff --git a/packages/server/src/server/project-suggestions.ts b/packages/server/src/server/project-suggestions.ts
index 2bc30cb1d2..4ad73585de 100644
--- a/packages/server/src/server/project-suggestions.ts
+++ b/packages/server/src/server/project-suggestions.ts
@@ -118,7 +118,8 @@ async function resolveProjectRoot(
     return null;
   }
   const checkout = await workspaceGitService.getCheckout(cwd);
-  const rootPath = checkout.mainRepoRoot ?? checkout.worktreeRoot ?? cwd;
+  // Git reports Windows roots with forward slashes; resolve to the form project.add keys by.
+  const rootPath = resolve(checkout.mainRepoRoot ?? checkout.worktreeRoot ?? cwd);
   if (rootPath !== cwd && !(await isDirectory(rootPath))) {
     return null;
   }