diff --git a/docs/INSTALL-digital-ocean.md b/docs/INSTALL-digital-ocean.md
index e0a2bd4b600..759fc3938cc 100644
--- a/docs/INSTALL-digital-ocean.md
+++ b/docs/INSTALL-digital-ocean.md
@@ -63,7 +63,7 @@ Replace `192.168.1.1` with the IP address you got from Digital Ocean.
 
 Finish installing Docker:
 
-    wget -qO- https://get.docker.io/ | sh
+    sudo wget -qO- https://get.docker.io/ | sh
 
 <img src="https://meta-discourse.r.worldssl.net/uploads/default/3004/e75967a1a8e27ea3.png" width="567" height="307">