diff --git a/README.md b/README.md
index 5913f5dd0f6c0a5a12ba6167cca28f36af078338..45b9f0276f0a7b209e8fe941aa14a98c31951525 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,7 @@
 
 ```
 cd icons/
-7z x FF*7z
+tar -xJf FF*xz
 cp -rf FF-* ~/.icons/
 ```
 
@@ -28,7 +28,7 @@ cp -rf FF-* ~/.icons/
 
 ```
 cd GTK/
-7z x FF*7z
+tar -xJf FF*xz
 cp -rf FF-* ~/.themes/
 ```