diff --git a/src/extras/primitives/primitives/a-sky.js b/src/extras/primitives/primitives/a-sky.js
index 10c94222686..424581eaaab 100644
--- a/src/extras/primitives/primitives/a-sky.js
+++ b/src/extras/primitives/primitives/a-sky.js
@@ -7,7 +7,7 @@ registerPrimitive('a-sky', utils.extendDeep({}, getMeshMixin(), {
   defaultComponents: {
     geometry: {
       primitive: 'sphere',
-      radius: 5000,
+      radius: 500,
       segmentsWidth: 64,
       segmentsHeight: 32
     },
diff --git a/src/extras/primitives/primitives/a-videosphere.js b/src/extras/primitives/primitives/a-videosphere.js
index 5d52d4c3cb4..9268d779244 100644
--- a/src/extras/primitives/primitives/a-videosphere.js
+++ b/src/extras/primitives/primitives/a-videosphere.js
@@ -6,7 +6,7 @@ registerPrimitive('a-videosphere', utils.extendDeep({}, getMeshMixin(), {
   defaultComponents: {
     geometry: {
       primitive: 'sphere',
-      radius: 5000,
+      radius: 500,
       segmentsWidth: 64,
       segmentsHeight: 32
     },