diff --git a/README.md b/README.md
index a44ca53..93f7944 100644
--- a/README.md
+++ b/README.md
@@ -111,7 +111,7 @@ The following steps are required to deploy the infrastructure from the command l
    RESOURCE_GROUP=rg-chat-basic-${BASE_NAME}
    az group create -l $LOCATION -n $RESOURCE_GROUP
 
-   PRINCIPAL_ID=$(az ad signed-in-user show --query id -o tsv)
+   PRINCIPAL_ID=$(az ad signed-in-user show --query id -o tsv| tr -d '\r\n')
 
    # This takes about 10 minutes to run.
    az deployment group create -f ./infra-as-code/bicep/main.bicep \