1 files changed, 1 insertions, 1 deletions
diff --git a/gmap_arcgis.js b/gmap_arcgis.js
index 06d8920..c4d8dbb 100644
--- a/gmap_arcgis.js
+++ b/gmap_arcgis.js
@@ -399,7 +399,7 @@ function gmapArcgis(config) {
         $(element).selectToUISlider({
           sliderOptions: {
             slide: function(event, ui) {
-              self.sliderUpdate.apply(self, [ ui.value, slider ]);
+              self.sliderUpdate.apply(self, [ ui.value - 1, slider ]);
             }
           }
         }).hide();