diff --git a/SmokeScreen/SmokeScreen-2.6.1.ckan b/SmokeScreen/SmokeScreen-2.6.1.ckan
index 080b842114..d9bc026170 100644
--- a/SmokeScreen/SmokeScreen-2.6.1.ckan
+++ b/SmokeScreen/SmokeScreen-2.6.1.ckan
@@ -6,7 +6,8 @@
     "license": "BSD-2-clause",
     "author": "sarbian",
     "release_status": "stable",
-    "ksp_version": "1.0",
+    "ksp_version_min": "1.0.0",
+    "ksp_version_max": "1.0.4",
     "resources": {
         "x_ci": "https://ksp.sarbian.com/jenkins/job/SmokeScreen/",
         "homepage": "http://forum.kerbalspaceprogram.com/threads/71630",