diff --git a/templates/xcode.pkr.hcl b/templates/xcode.pkr.hcl
index 52a3fd6..f2018e2 100644
--- a/templates/xcode.pkr.hcl
+++ b/templates/xcode.pkr.hcl
@@ -150,7 +150,7 @@ build {
     inline = concat(
       ["source ~/.zprofile"],
       [
-        for runtime in var.additional_runtimes : "sudo xcodes runtimes install ${runtime}"
+        for runtime in var.additional_runtimes : "sudo xcodes runtimes install '${runtime}'"
       ]
     )
   }