diff --git a/lib/AbstractPicoPlugin.php b/lib/AbstractPicoPlugin.php
index 09e8eb2..e3ee2dc 100644
--- a/lib/AbstractPicoPlugin.php
+++ b/lib/AbstractPicoPlugin.php
@@ -187,7 +187,7 @@ abstract class AbstractPicoPlugin implements PicoPluginInterface
      */
     public function getDependencies()
     {
-        return $this->dependsOn;
+        return (array) $this->dependsOn;
     }
 
     /**