diff --git a/packages/metro-config/src/__tests__/__snapshots__/loadConfig-test.js.snap b/packages/metro-config/src/__tests__/__snapshots__/loadConfig-test.js.snap
index 4dcfd81abf..e64ebf497a 100644
--- a/packages/metro-config/src/__tests__/__snapshots__/loadConfig-test.js.snap
+++ b/packages/metro-config/src/__tests__/__snapshots__/loadConfig-test.js.snap
@@ -131,7 +131,6 @@ Object {
       },
       "output": Object {
         "ascii_only": true,
-        "comments": false,
         "quote_style": 3,
         "wrap_iife": true,
       },
@@ -309,7 +308,6 @@ Object {
       },
       "output": Object {
         "ascii_only": true,
-        "comments": false,
         "quote_style": 3,
         "wrap_iife": true,
       },
@@ -487,7 +485,6 @@ Object {
       },
       "output": Object {
         "ascii_only": true,
-        "comments": false,
         "quote_style": 3,
         "wrap_iife": true,
       },
@@ -665,7 +662,6 @@ Object {
       },
       "output": Object {
         "ascii_only": true,
-        "comments": false,
         "quote_style": 3,
         "wrap_iife": true,
       },
diff --git a/packages/metro-config/src/defaults/index.js b/packages/metro-config/src/defaults/index.js
index 4e4cefd124..59142eeb04 100644
--- a/packages/metro-config/src/defaults/index.js
+++ b/packages/metro-config/src/defaults/index.js
@@ -110,7 +110,6 @@ const getDefaultValues = (projectRoot: ?string): ConfigT => ({
       },
       output: {
         ascii_only: true,
-        comments: false,
         quote_style: 3,
         wrap_iife: true,
       },