diff --git a/Weather/Metar.php b/Weather/Metar.php
index 2746aa4..46f6a3b 100644
--- a/Weather/Metar.php
+++ b/Weather/Metar.php
@@ -1842,6 +1842,10 @@ function getWeather($id = "", $unitsFormat = "")
 
             // Calculate the moon phase and age
             $moon = $this->calculateMoonPhase(strtotime($weatherReturn["updateRaw"]." GMT"));
+            if (Services_Weather::isError($moon)) {
+                return $moon;
+            }
+
             $weatherReturn["moon"]     = $moon["phase"];
             $weatherReturn["moonIcon"] = $moon["icon"];