diff --git a/USI-NuclearRockets/USI-NuclearRockets-0.2.1.0.ckan b/USI-NuclearRockets/USI-NuclearRockets-0.2.1.0.ckan
index 72039e24ed..139fc1c7da 100644
--- a/USI-NuclearRockets/USI-NuclearRockets-0.2.1.0.ckan
+++ b/USI-NuclearRockets/USI-NuclearRockets-0.2.1.0.ckan
@@ -33,6 +33,11 @@
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+    },
+    "download_content_type": "application/zip",
     "x_last_revision_by": "harryyoung",
     "x_generated_by": "netkan"
 }