diff --git a/tools/automate/automate-git.py b/tools/automate/automate-git.py
index 30c861524..0e590001d 100644
--- a/tools/automate/automate-git.py
+++ b/tools/automate/automate-git.py
@@ -517,7 +517,14 @@ branch_is_2357_or_newer = (cef_branch == 'trunk' or int(cef_branch) >= 2357)
 # True if the requested branch is 2743 or older.
 branch_is_2743_or_older = (cef_branch != 'trunk' and int(cef_branch) <= 2743)
 
-# Whether to use GN or GYP. GYP is currently the default.
+# True if the requested branch is newer than 2785.
+branch_is_newer_than_2785 = (cef_branch == 'trunk' or int(cef_branch) > 2785)
+
+# Enable GN by default for branches newer than 2785.
+if branch_is_newer_than_2785 and not 'CEF_USE_GN' in os.environ.keys():
+  os.environ['CEF_USE_GN'] = '1'
+
+# Whether to use GN or GYP. GYP is currently the default for older branches.
 use_gn = bool(int(os.environ.get('CEF_USE_GN', '0')))
 if use_gn:
   if branch_is_2743_or_older:
diff --git a/tools/gclient_hook.py b/tools/gclient_hook.py
index a06919292..ee07ad01c 100644
--- a/tools/gclient_hook.py
+++ b/tools/gclient_hook.py
@@ -40,8 +40,8 @@ RunAction(cef_dir, patcher)
 
 print "\nGenerating CEF project files..."
 
-# Whether to use GN or GYP. GYP is currently the default.
-use_gn = bool(int(os.environ.get('CEF_USE_GN', '0')))
+# Whether to use GN or GYP. GN is currently the default.
+use_gn = bool(int(os.environ.get('CEF_USE_GN', '1')))
 gn_args = {}
 
 custom_toolchain = False
diff --git a/tools/make_distrib.py b/tools/make_distrib.py
index fbe81008c..5e61911c8 100644
--- a/tools/make_distrib.py
+++ b/tools/make_distrib.py
@@ -282,8 +282,8 @@ elif sys.platform == 'darwin':
 elif sys.platform.startswith('linux'):
   platform = 'linux'
 
-# Whether to use GN or GYP. GYP is currently the default.
-use_gn = bool(int(os.environ.get('CEF_USE_GN', '0')))
+# Whether to use GN or GYP. GN is currently the default.
+use_gn = bool(int(os.environ.get('CEF_USE_GN', '1')))
 
 # the outputdir option is required
 if options.outputdir is None: