diff --git a/public/ephemeriden.php b/public/ephemeriden.php
index eba829f..de83a54 100644
--- a/public/ephemeriden.php
+++ b/public/ephemeriden.php
@@ -943,7 +943,7 @@ const EPHEMERIDEN_CHART_CONSTELLATIONS = <?= $ephemerisConstellationLinesJson ?>
     const applyButton = document.getElementById('ephemeridenChartApply');
 
     const logoImage = new Image();
-    logoImage.src = 'images/logoAM_sw.png';
+    logoImage.src = 'images/logoAM_ws.png';
     logoImage.onload = () => { if (!chartCard.hidden) { drawChart(); } };
 
     if (!toggleButton || !chartCard || !canvas || !pointSelect || !timeInput || !labelStepSelect || !labelRotationSelect || !applyButton || !Array.isArray(EPHEMERIDEN_CHART_ROWS) || EPHEMERIDEN_CHART_ROWS.length === 0) {