diff --git a/pkgs/development/libraries/freedesktop/xlibs/builder.sh b/pkgs/development/libraries/freedesktop/xlibs/builder.sh
index df20779236f2..f1230bed2d8a 100755
--- a/pkgs/development/libraries/freedesktop/xlibs/builder.sh
+++ b/pkgs/development/libraries/freedesktop/xlibs/builder.sh
@@ -2,4 +2,8 @@
 . $stdenv/setup
 dontMake=1
 dontMakeInstall=1
+nop() {
+    sourceRoot=.
+}
+unpackPhase=nop
 genericBuild