diff --git a/src/controls/print/print-legend.js b/src/controls/print/print-legend.js
index 9e89f098b..3a64430f4 100644
--- a/src/controls/print/print-legend.js
+++ b/src/controls/print/print-legend.js
@@ -61,7 +61,10 @@ const LayerRow = function LayerRow(options) {
     const layerName = aLayer.get('name');
     const style = viewer.getStyle(aLayer.get('styleName'));
     if (style && style[0] && style[0][0] && style[0][0].icon) {
-      return `${style[0][0].icon.src}&format=${format}`;
+      if (style[0][0].icon.src.includes('?')) {
+        return `${style[0][0].icon.src}&format=${format}`;
+      }
+      return `${style[0][0].icon.src}?format=${format}`;
     }
     return `${url}?SERVICE=WMS&layer=${layerName}&format=${format}&version=1.1.1&request=getLegendGraphic&scale=401&legend_options=dpi:300`;
   };