diff --git a/desktop/extensions-sdk/build/frontend-extension-tutorial.md b/desktop/extensions-sdk/build/frontend-extension-tutorial.md
index 57e91699c5..351fb74ed0 100644
--- a/desktop/extensions-sdk/build/frontend-extension-tutorial.md
+++ b/desktop/extensions-sdk/build/frontend-extension-tutorial.md
@@ -93,7 +93,7 @@ LABEL org.opencontainers.image.title="My extension" \
     org.opencontainers.image.description="Your Desktop Extension Description" \
     org.opencontainers.image.vendor="Awesome Inc." \
     com.docker.desktop.extension.api.version="0.3.0" \
-    com.docker.desktop.extension.icon="https://www.docker.com/wp-content/uploads/2022/03/Moby-logo.png"
+    com.docker.desktop.extension.icon="https://www.docker.com/wp-content/uploads/2022/03/Moby-logo.png" \
     com.docker.extension.screenshots="" \
     com.docker.extension.detailed-description="" \
     com.docker.extension.publisher-url="" \