diff --git a/sys-devel/qbe/qbe-9999.ebuild b/sys-devel/qbe/qbe-9999.ebuild
index 09e3521a50..b1d9485606 100644
--- a/sys-devel/qbe/qbe-9999.ebuild
+++ b/sys-devel/qbe/qbe-9999.ebuild
@@ -10,3 +10,7 @@ HOMEPAGE="https://c9x.me/compile/"
 EGIT_REPO_URI="git://c9x.me/qbe.git"
 LICENSE="MIT"
 SLOT="0"
+
+src_install() {
+	PREFIX=/usr default
+}