diff --git a/build.pkr.hcl b/build.pkr.hcl
index e488af8..b3a974e 100644
--- a/build.pkr.hcl
+++ b/build.pkr.hcl
@@ -79,7 +79,7 @@ build {
   }
 
   post-processor "docker-tag" {
-    repository = ${local.ecr_repo}/${var.project_name}
+    repository = "${local.ecr_repo}/${var.project_name}"
     tag        = [local.tag]
   }