diff --git a/srcpkgs/lxqt-powermanagement/template b/srcpkgs/lxqt-powermanagement/template
index 0f8dc5e3196..1a2ad858d19 100644
--- a/srcpkgs/lxqt-powermanagement/template
+++ b/srcpkgs/lxqt-powermanagement/template
@@ -12,7 +12,3 @@ license="LGPL-2.1"
 homepage="http://lxqt.org/"
 distfiles="https://github.com/lxde/lxqt-powermanagement/releases/download/${version}/lxqt-powermanagement-${version}.tar.xz"
 checksum=6acebb2407400bca52bb1f167f786d4343e37fdb5c7c8b1c34358bcdad1099d6
-
-post_configure() {
-	find -name flags.make -exec sed -i "{}" -e"s;-isystem;-I;g" \;
-}