diff --git a/packages/addon-dev/src/rollup-public-entrypoints.ts b/packages/addon-dev/src/rollup-public-entrypoints.ts
index 1844451f3..9ccdf9e00 100644
--- a/packages/addon-dev/src/rollup-public-entrypoints.ts
+++ b/packages/addon-dev/src/rollup-public-entrypoints.ts
@@ -34,7 +34,7 @@ export default function publicEntrypoints(args: {
       matches.forEach((m) => allEntryPoints.add(m));
 
       for (const name of allEntryPoints) {
-        this.addWatchFile(path.join(args.srcDir, name));
+        this.addWatchFile(path.resolve(args.srcDir, name));
       }
 
       for (let name of matches) {
diff --git a/tests/scenarios/v2-addon-dev-watch-test.ts b/tests/scenarios/v2-addon-dev-watch-test.ts
index 437c847c8..114152a3f 100644
--- a/tests/scenarios/v2-addon-dev-watch-test.ts
+++ b/tests/scenarios/v2-addon-dev-watch-test.ts
@@ -237,7 +237,7 @@ Scenarios.fromProject(() => baseV2Addon())
                 //
                 // the `stat` is measured in `ms`, so it's still pretty fast
                 await fs.rm(demoHbs);
-                await aBit(20);
+                await aBit(150);
                 await watcher?.nextBuild();
                 await aBit(150);
               },