diff --git a/app/Console/Commands/UpgradeFireflyInstructions.php b/app/Console/Commands/UpgradeFireflyInstructions.php
index 7b44c41c29..ee5013e7f8 100644
--- a/app/Console/Commands/UpgradeFireflyInstructions.php
+++ b/app/Console/Commands/UpgradeFireflyInstructions.php
@@ -58,9 +58,10 @@ class UpgradeFireflyInstructions extends Command
         }
 
         // collect system telemetry
+        $isDocker = true === env('IS_DOCKER', false) ? 'true' : 'false';
         app('telemetry')->feature('system.php.version', PHP_VERSION);
         app('telemetry')->feature('system.os.version', PHP_OS);
-        app('telemetry')->feature('system.os.is_docker', env('IS_DOCKER', 'false'));
+        app('telemetry')->feature('system.os.is_docker', $isDocker);
         app('telemetry')->feature('system.command.executed', $this->signature);
         return 0;
     }