diff --git a/cef3/patch/patch.cfg b/cef3/patch/patch.cfg
index f7106e497..ac86c8348 100644
--- a/cef3/patch/patch.cfg
+++ b/cef3/patch/patch.cfg
@@ -41,6 +41,11 @@ patches = [
     'name': 'browser_prefs_600',
     'path': '../chrome/browser/prefs/',
   },
+  {
+    # http://code.google.com/p/chromiumembedded/issues/detail?id=642
+    'name': 'renderer_main_642',
+    'path': '../content/renderer/',
+  },
   {
     # http://code.google.com/p/chromiumembedded/issues/detail?id=364
     'name': 'spi_webcore_364',
diff --git a/cef3/patch/patches/renderer_main_642.patch b/cef3/patch/patches/renderer_main_642.patch
new file mode 100644
index 000000000..369330d2b
--- /dev/null
+++ b/cef3/patch/patches/renderer_main_642.patch
@@ -0,0 +1,13 @@
+Index: renderer_main.cc
+===================================================================
+--- renderer_main.cc	(revision 180609)
++++ renderer_main.cc	(working copy)
+@@ -174,7 +174,7 @@
+     if (!no_sandbox) {
+       run_loop = platform.EnableSandbox();
+     } else {
+-      LOG(ERROR) << "Running without renderer sandbox";
++      // LOG(ERROR) << "Running without renderer sandbox";
+ #ifndef NDEBUG
+       // For convenience, we print the stack trace for crashes. We can't get
+       // symbols when the sandbox is enabled, so only try when the sandbox is