diff --git a/SolverEngines/SolverEngines-v1.13.ckan b/SolverEngines/SolverEngines-v1.13.ckan
index 43ca84d305..0db023255d 100644
--- a/SolverEngines/SolverEngines-v1.13.ckan
+++ b/SolverEngines/SolverEngines-v1.13.ckan
@@ -27,6 +27,6 @@
         }
     ],
     "download": "https://github.com/KSP-RO/SolverEngines/releases/download/v1.13/SolverEngines_v1.13.zip",
-    "download_size": 539012,
+    "download_size": 37971,
     "x_generated_by": "netkan"
 }