diff --git a/ModularRocketSystem/ModularRocketSystem-1.7.3.ckan b/ModularRocketSystem/ModularRocketSystem-1.7.3.ckan
index a20a31ed26..430126f5bd 100644
--- a/ModularRocketSystem/ModularRocketSystem-1.7.3.ckan
+++ b/ModularRocketSystem/ModularRocketSystem-1.7.3.ckan
@@ -24,6 +24,7 @@
         "x_screenshot": "https://kerbalstuff.com/content/NecroBones_1035/Modular_Rocket_Systems_-_Parts_Pack/Modular_Rocket_Systems_-_Parts_Pack.png"
     },
     "ksp_version_min": "1.0.3",
+    "ksp_version_max": "1.0.4",
     "download_size": 10797882,
     "x_generated_by": "netkan"
 }