diff --git a/Dockerfile b/Dockerfile
index 9924fbf1c..c940fc065 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,7 +12,7 @@ ARG GITHUB_USERNAME=
 ARG GITHUB_PASS=
 ARG GITHUB_EMAIL=
 
-RUN ${GITHUB_USERNAME}\n${GITHUB_PASS}\n${GITHUB_EMAIL}" | npm login --registry=https://npm.pkg.github.com
+RUN "${GITHUB_USERNAME}\n${GITHUB_PASS}\n${GITHUB_EMAIL}" | npm login --registry=https://npm.pkg.github.com
 
 RUN npm install