diff --git a/srcpkgs/lxqt-qtplugin/template b/srcpkgs/lxqt-qtplugin/template
index a31c9f49174..95049de85f9 100644
--- a/srcpkgs/lxqt-qtplugin/template
+++ b/srcpkgs/lxqt-qtplugin/template
@@ -11,7 +11,3 @@ license="LGPL-2.1"
 homepage="http://lxqt.org/"
 distfiles="https://github.com/lxde/lxqt-qtplugin/releases/download/${version}/lxqt-qtplugin-${version}.tar.xz"
 checksum=20acf0b775d28a33400b2e6606835931ab7f02226175c8115562c060c39bd391
-
-post_configure() {
-	find -name flags.make -exec sed -i "{}" -e"s;-isystem;-I;g" \;
-}