diff --git a/src/plots/polar/polar.js b/src/plots/polar/polar.js
index d6b3ea3b8c0..ebb32681efd 100644
--- a/src/plots/polar/polar.js
+++ b/src/plots/polar/polar.js
@@ -280,7 +280,7 @@ proto.updateLayout = function(fullLayout, polarLayout) {
     yaxis.isPtWithinRange = function() { return true; };
 
     _this.clipPaths.forTraces.select('path')
-        .attr('d', pathSectorClosed(radius, sector))
+        .attr('d', pathSectorClosed(radius, sector, _this.vangles))
         .attr('transform', strTranslate(cxx, cyy));
 
     layers.frontplot
@@ -288,7 +288,7 @@ proto.updateLayout = function(fullLayout, polarLayout) {
         .call(Drawing.setClipUrl, _this._hasClipOnAxisFalse ? null : _this.clipIds.forTraces);
 
     layers.bg
-        .attr('d', pathSectorClosed(radius, sector))
+        .attr('d', pathSectorClosed(radius, sector, _this.vangles))
         .attr('transform', strTranslate(cx, cy))
         .call(Color.fill, polarLayout.bgcolor);
 
diff --git a/test/image/baselines/polar_polygon-grids.png b/test/image/baselines/polar_polygon-grids.png
index 4c06a410fcc..5085bea992e 100644
Binary files a/test/image/baselines/polar_polygon-grids.png and b/test/image/baselines/polar_polygon-grids.png differ
diff --git a/test/image/mocks/polar_polygon-grids.json b/test/image/mocks/polar_polygon-grids.json
index 02e9243b5c7..e260257176a 100644
--- a/test/image/mocks/polar_polygon-grids.json
+++ b/test/image/mocks/polar_polygon-grids.json
@@ -84,6 +84,7 @@
     },
     "polar4": {
       "usepolygons": true,
+      "bgcolor": "#d3d3d3",
       "domain": {
         "x": [0.54, 1],
         "y": [0, 0.44]