diff --git a/lib/functions.zsh b/lib/functions.zsh
index 99b7540..4246f88 100644
--- a/lib/functions.zsh
+++ b/lib/functions.zsh
@@ -43,6 +43,8 @@ function extract() {
     case $1 in
       *.tar.bz2) tar xvjf $1;;
       *.tar.gz) tar xvzf $1;;
+      *.tar.xz) tar xvJf $1;;
+      *.tar.lzma) tar --lzma -xvf $1;;
       *.bz2) bunzip $1;;
       *.rar) unrar $1;;
       *.gz) gunzip $1;;