1 files changed, 4 insertions, 0 deletions
diff --git a/scripts/generate-style-code.js b/scripts/generate-style-code.js
index 2622ae5ef6..5145755cec 100755
--- a/scripts/generate-style-code.js
+++ b/scripts/generate-style-code.js
@@ -153,7 +153,11 @@ global.defaultValue = function (property) {
 
   switch (property.type) {
   case 'number':
+  if (property.default === undefined) {
+    return 0;
+  } else {
     return property.default;
+  }
   case 'formatted':
   case 'string':
     return JSON.stringify(property.default || "");