diff --git a/module.nix b/module.nix
index 9f09fc5..39afe94 100644
--- a/module.nix
+++ b/module.nix
@@ -69,8 +69,8 @@ in {
         };
         serviceConfig = {
           ExecStart = pkgs.writeShellScript "launch-pricebot-${currency}.sh" ''
-            echo $CREDENTIALS_DIRECTORY
-            echo $CREDENTIALS_PATH
+            echo "CREDENTIALS_DIRECTORY $CREDENTIALS_DIRECTORY"
+            echo "CREDENTIALS_PATH $CREDENTIALS_PATH"
             ${pricebot}/bin/pricebot
           '';
           DynamicUser = true;