diff --git a/src/fast-path.js b/src/fast-path.js
index c980c5b7e..b2decbe90 100644
--- a/src/fast-path.js
+++ b/src/fast-path.js
@@ -451,9 +451,16 @@ FPp.needsParens = function(assumeExpressionContext) {
           if (parent.test === node) {
             return true;
           }
+          return false;
 
         case "ExportDefaultDeclaration":
-          return node.type !== "ArrowFunctionExpression";
+          if (node.type === "ArrowFunctionExpression") {
+            return false;
+          }
+          if (node.type === "FunctionExpression" && !node.id) {
+            return false;
+          }
+          return true;
 
         case "ExpressionStatement":
         case "MemberExpression":
diff --git a/tests/conditional/__snapshots__/jsfmt.spec.js.snap b/tests/conditional/__snapshots__/jsfmt.spec.js.snap
index c8095d6e8..bce41884e 100644
--- a/tests/conditional/__snapshots__/jsfmt.spec.js.snap
+++ b/tests/conditional/__snapshots__/jsfmt.spec.js.snap
@@ -41,23 +41,23 @@ const { configureStore } = process.env.NODE_ENV === \\"production\\"
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 var inspect = 4 === util.inspect.length
   ? // node <= 0.8.x
-    (function(v, colors) {
+    function(v, colors) {
       return util.inspect(v, void 0, void 0, colors);
-    })
+    }
   : // node > 0.8.x
-    (function(v, colors) {
+    function(v, colors) {
       return util.inspect(v, { colors: colors });
-    });
+    };
 
 var inspect = 4 === util.inspect.length
   ? // node <= 0.8.x
-    (function(v, colors) {
+    function(v, colors) {
       return util.inspect(v, void 0, void 0, colors);
-    })
+    }
   : // node > 0.8.x
-    (function(v, colors) {
+    function(v, colors) {
       return util.inspect(v, { colors: colors });
-    });
+    };
 
 const extractTextPluginOptions = shouldUseRelativeAssetPaths
   ? // Making sure that the publicPath goes back to to build folder.
diff --git a/tests/es6modules/__snapshots__/jsfmt.spec.js.snap b/tests/es6modules/__snapshots__/jsfmt.spec.js.snap
index d656f12e1..6178a366e 100644
--- a/tests/es6modules/__snapshots__/jsfmt.spec.js.snap
+++ b/tests/es6modules/__snapshots__/jsfmt.spec.js.snap
@@ -101,14 +101,14 @@ export default function f() {}
 exports[`export_default_function_expression.js 1`] = `
 "export default (function() {});
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-export default (function() {});
+export default function() {};
 "
 `;
 
 exports[`export_default_function_expression.js 2`] = `
 "export default (function() {});
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-export default (function() {});
+export default function() {};
 "
 `;