diff --git a/pkgs/stdenv/generic/setup.sh b/pkgs/stdenv/generic/setup.sh
index 2938bec30dea..a50596985ec8 100644
--- a/pkgs/stdenv/generic/setup.sh
+++ b/pkgs/stdenv/generic/setup.sh
@@ -543,6 +543,9 @@ patchPhase() {
             *.bz2)
                 uncompress="bzip2 -d"
                 ;;
+            *.xz)
+                uncompress="xz -d"
+                ;;
             *.lzma)
                 uncompress="lzma -d"
                 ;;