diff --git a/src/TideSystemInfoService.php b/src/TideSystemInfoService.php
index 13a42b944..fed2f4fa4 100644
--- a/src/TideSystemInfoService.php
+++ b/src/TideSystemInfoService.php
@@ -226,10 +226,12 @@ function ($entityType) {
    */
   public function getPackageVersion($packageName) {
     if (empty($packageName)) {
-      $result = $this->sensorRunner->runSensors([SensorConfig::load('tide_times')]);
-      $value = $result[0]->getValue();
-      $decodedValue = json_decode($value, TRUE);
-      return $decodedValue;
+      if ($this->sensorRunner) {
+        $result = $this->sensorRunner->runSensors([SensorConfig::load('tide_times')]);
+        $value = $result[0]->getValue();
+        $decodedValue = json_decode($value, TRUE);
+        return $decodedValue;
+      }
     }
 
     if (strtolower($packageName) === 'php') {
diff --git a/tide_core.services.yml b/tide_core.services.yml
index c332995ba..49d7fb1d1 100644
--- a/tide_core.services.yml
+++ b/tide_core.services.yml
@@ -34,4 +34,4 @@ services:
       - '@entity_field.manager'
       - '@logger.factory'
       - '@file_system'
-      - '@monitoring.sensor_runner'
+      - '@?monitoring.sensor_runner'