diff --git a/src/SecExp/rebellionGenerator.tw b/src/SecExp/rebellionGenerator.tw
index 3134e57c7064ce5e2f2c0ba88d5965af1d3da39c..8f2a024cabb3e2165418e4580ac22ec42c774f86 100644
--- a/src/SecExp/rebellionGenerator.tw
+++ b/src/SecExp/rebellionGenerator.tw
@@ -2,7 +2,7 @@
 
 <<set _slave = 0>>
 <<set _citizen = 0>>
-<<set _CSratio = $ACitizens / $ASlaves>>
+<<set _CSratio = $ACitizens / ($ASlaves + $helots)>>
 
 <strong>Slaves security analysis:</strong>
 <<if $authority <= 3000>>