diff --git a/README.md b/README.md
index 25eb40c5..8c8bde65 100644
--- a/README.md
+++ b/README.md
@@ -130,7 +130,7 @@ listed in requirements.txt:
     sudo apt-get install python-pip git
     git clone https://github.com/foosel/PrinterWebUI.git
     cd PrinterWebUI
-    pip install -r requirements.txt
+    sudo pip install -r requirements.txt
 
 You should then be able to start the OctoPrint server: