diff --git a/script/vsts/platforms/templates/preparation.yml b/script/vsts/platforms/templates/preparation.yml
index 143da2fc3..9cc02dd0b 100644
--- a/script/vsts/platforms/templates/preparation.yml
+++ b/script/vsts/platforms/templates/preparation.yml
@@ -6,7 +6,7 @@ steps:
       sudo apt-get install -y wget software-properties-common
       sudo apt-get install -y build-essential ca-certificates xvfb fakeroot git libsecret-1-dev libx11-dev libxkbfile-dev xz-utils xorriso zsync libxss1 libgtk-3-0 libasound2 libicu-dev software-properties-common
       # rpm needs to be at least 4.14, in xenial it is too old
-      sudo apt-add-repository -y ‘deb https://azure.archive.ubuntu.com/ubuntu/ bionic main universe’
+      sudo apt-add-repository -y 'deb https://azure.archive.ubuntu.com/ubuntu/ bionic main universe'
       sudo apt update
       sudo apt-get install -y rpm
       # clang 9 is included in the image