diff --git a/src/toolkit.c b/src/toolkit.c
index 71812aa..2239d8c 100644
--- a/src/toolkit.c
+++ b/src/toolkit.c
@@ -1834,8 +1834,8 @@ static void toolkit_imgarrMove(Widget* iar, double ry) {
     yelem = (int)iar->dat.iar.nelements / xelem + 1;
 
     hmax = h * (yelem - (int)(iar->h / h));
-
-    iar->dat.iar.pos -= (ry * (iar->w - 30.) / hmax) / 2.;
+  
+    iar->dat.iar.pos -= ry*hmax / (iar->h - 30.);
 
     /* Does boundry checks. */
     toolkit_listScroll(iar, 0);