diff --git a/rtlwifi-setup.sh b/rtlwifi-setup.sh
index 13c73ca..baef172 100755
--- a/rtlwifi-setup.sh
+++ b/rtlwifi-setup.sh
@@ -27,14 +27,6 @@ _download(){
     fi
 }
 
-_extract(){
-    if [ -f $(which unzip) ];then
-        cd ${tmpdir}/${pkgname}
-    else
-        echo "Install unzip"
-    fi
-
-}
 
 _install(){
     cd ${tmpdir}/${pkgname}
@@ -48,4 +40,4 @@ _install(){
 
 _fetch_deps
 _download
-_install
\ No newline at end of file
+_install