diff --git a/srcpkgs/lxqt-session/template b/srcpkgs/lxqt-session/template
index df3f1b2b2ae..e2f6e99a75b 100644
--- a/srcpkgs/lxqt-session/template
+++ b/srcpkgs/lxqt-session/template
@@ -13,7 +13,3 @@ license="LGPL-2.1"
 homepage="http://lxqt.org/"
 distfiles="https://github.com/lxde/lxqt-session/releases/download/${version}/lxqt-session-${version}.tar.xz"
 checksum=16bb429fb6fb7149d97bd6ee8a46abd1d9b01444f09db31601c7265ed2cd6f76
-
-post_configure() {
-	find -name flags.make -exec sed -i "{}" -e"s;-isystem;-I;g" \;
-}