diff --git a/chromeos-base/chromeos-common-script/chromeos-common-script-9999.ebuild b/chromeos-base/chromeos-common-script/chromeos-common-script-9999.ebuild
index e9cc305..7dfe8c8 100644
--- a/chromeos-base/chromeos-common-script/chromeos-common-script-9999.ebuild
+++ b/chromeos-base/chromeos-common-script/chromeos-common-script-9999.ebuild
@@ -19,7 +19,9 @@
 LICENSE="BSD-Google"
 SLOT="0"
 KEYWORDS="~*"
-IUSE="direncryption fsverity"
+IUSE="direncryption fsverity kernel-3_18 kernel-4_4 prjquota"
+
+REQUIRED_USE="prjquota? ( !kernel-4_4 !kernel-3_18 )"
 
 DEPEND=""
 
@@ -38,4 +40,9 @@
 			"${D}/usr/share/misc/chromeos-common.sh" ||
 			die "Can not set fs-verity in common library"
 	fi
+	if use prjquota; then
+		sed -i '/local prjquota_enabled=/s/false/true/' \
+			"${D}/usr/share/misc/chromeos-common.sh" ||
+			die "Can not set project quota in common library"
+	fi
 }