diff --git a/packages/turf-circle/index.js b/packages/turf-circle/index.js
index a850983a8c..8d4bddabf4 100644
--- a/packages/turf-circle/index.js
+++ b/packages/turf-circle/index.js
@@ -30,7 +30,7 @@ module.exports = function (center, radius, steps, units, properties) {
 
     // default params
     steps = steps || 64;
-    properties = properties | center.properties | {};
+    properties = properties || center.properties || {};
 
     var coordinates = [];
     for (var i = 0; i < steps; i++) {
diff --git a/packages/turf-circle/test/out/circle1.geojson b/packages/turf-circle/test/out/circle1.geojson
index afbc964219..f4ce6b9248 100644
--- a/packages/turf-circle/test/out/circle1.geojson
+++ b/packages/turf-circle/test/out/circle1.geojson
@@ -16,7 +16,9 @@
 		},
 		{
 			"type": "Feature",
-			"properties": {},
+			"properties": {
+				"radius": 5
+			},
 			"geometry": {
 				"type": "Polygon",
 				"coordinates": [