diff --git a/cmd/heartbeat/heartbeat_test.go b/cmd/heartbeat/heartbeat_test.go
index 2858364d..818e88b3 100644
--- a/cmd/heartbeat/heartbeat_test.go
+++ b/cmd/heartbeat/heartbeat_test.go
@@ -137,6 +137,11 @@ func TestSendHeartbeats_RateLimited(t *testing.T) {
 		numCalls++
 	})
 
+	tmpFile, err := os.CreateTemp(t.TempDir(), "wakatime")
+	require.NoError(t, err)
+
+	defer tmpFile.Close()
+
 	v := viper.New()
 	v.SetDefault("sync-offline-activity", 1000)
 	v.Set("api-url", testServerURL)
@@ -156,6 +161,7 @@ func TestSendHeartbeats_RateLimited(t *testing.T) {
 	v.Set("timeout", 5)
 	v.Set("write", true)
 	v.Set("heartbeat-rate-limit-seconds", 500)
+	v.Set("internal-config", tmpFile.Name())
 	v.Set("internal.heartbeats_last_sent_at", time.Now().Add(-time.Minute).Format(time.RFC3339))
 
 	offlineQueueFile, err := os.CreateTemp(t.TempDir(), "")