diff --git a/BatteryWidget/ImageLoader.cs b/BatteryWidget/ImageLoader.cs
index 7a3f3b8..546e0c5 100644
--- a/BatteryWidget/ImageLoader.cs
+++ b/BatteryWidget/ImageLoader.cs
@@ -43,7 +43,7 @@ namespace BatteryWidget {
         }
 
         private static Image loadImage(string name) {
-            string filename = PATH + Path.PathSeparator + name;
+            string filename = PATH + Path.DirectorySeparatorChar + name + ".png";
             using (FileStream fs = new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.Read)) {
                 return new Bitmap(fs);
             }