diff --git a/src/controllers/controller.bar.js b/src/controllers/controller.bar.js
index bec996ac1de..d7daa6e8430 100644
--- a/src/controllers/controller.bar.js
+++ b/src/controllers/controller.bar.js
@@ -285,8 +285,8 @@ export default class BarController extends DatasetController {
         enableBorderRadius: !stack || isFloatBar(parsed._custom) || (me.index === stack._top || me.index === stack._bottom),
         x: horizontal ? vpixels.head : ipixels.center,
         y: horizontal ? ipixels.center : vpixels.head,
-        height: horizontal ? ipixels.size : undefined,
-        width: horizontal ? undefined : ipixels.size
+        height: horizontal ? ipixels.size : Math.abs(vpixels.size),
+        width: horizontal ? Math.abs(vpixels.size) : ipixels.size
       };
 
       if (includeOptions) {