diff --git a/pkgs/applications/networking/browsers/chromium/browser.nix b/pkgs/applications/networking/browsers/chromium/browser.nix
index ffc23a9d968..daab75c74ff 100644
--- a/pkgs/applications/networking/browsers/chromium/browser.nix
+++ b/pkgs/applications/networking/browsers/chromium/browser.nix
@@ -30,6 +30,8 @@ mkChromiumDerivation (base: rec {
     done
   '';
 
+  preHook = "unset NIX_ENFORCE_PURITY";
+
   meta = {
     description = "An open source web browser from Google";
     homepage = http://www.chromium.org/;
diff --git a/pkgs/applications/networking/browsers/chromium/common.nix b/pkgs/applications/networking/browsers/chromium/common.nix
index 31125795271..b9011c0236f 100644
--- a/pkgs/applications/networking/browsers/chromium/common.nix
+++ b/pkgs/applications/networking/browsers/chromium/common.nix
@@ -108,7 +108,7 @@ let
       nspr udev
       (if useOpenSSL then openssl else nss)
       utillinux alsaLib
-      gcc bison gperf krb5
+      bison gperf krb5
       glib gtk dbus_glib
       libXScrnSaver libXcursor libXtst mesa
       pciutils protobuf speechd libXdamage