diff --git a/content/manuals/engine/install/ubuntu.md b/content/manuals/engine/install/ubuntu.md
index 5406a0e40a5..db7bbcb474f 100644
--- a/content/manuals/engine/install/ubuntu.md
+++ b/content/manuals/engine/install/ubuntu.md
@@ -129,7 +129,7 @@ Docker from the repository.
    sudo apt-get update
    sudo apt-get install ca-certificates curl
    sudo install -m 0755 -d /etc/apt/keyrings
-   sudo curl -fsSL {{% param "download-url-base" %}}/gpg -o /etc/apt/keyrings/docker.asc
+   sudo -E curl -fsSL {{% param "download-url-base" %}}/gpg -o /etc/apt/keyrings/docker.asc
    sudo chmod a+r /etc/apt/keyrings/docker.asc
 
    # Add the repository to Apt sources: