1 files changed, 9 insertions, 1 deletions
diff --git a/node_modules/babel-generator/lib/generators/flow.js b/node_modules/babel-generator/lib/generators/flow.js
index cc52ffe83..077f75cf8 100644
--- a/node_modules/babel-generator/lib/generators/flow.js
+++ b/node_modules/babel-generator/lib/generators/flow.js
@@ -321,11 +321,19 @@ function ObjectTypeAnnotation(node) {
     this.space();
 
     this.printJoin(props, node, {
+      addNewlines: function addNewlines(leading) {
+        if (leading && !props[0]) return 1;
+      },
+
       indent: true,
       statement: true,
       iterator: function iterator() {
         if (props.length !== 1) {
-          _this.semicolon();
+          if (_this.format.flowCommaSeparator) {
+            _this.token(",");
+          } else {
+            _this.semicolon();
+          }
           _this.space();
         }
       }