diff --git a/src/js/futureSocietyJS.js b/src/js/futureSocietyJS.js
index 2198af8beafd4a6d91c132bb4961b48ebbe001a6..d0f12b4330a61b4ab894c712a0fc33057445d4bf 100644
--- a/src/js/futureSocietyJS.js
+++ b/src/js/futureSocietyJS.js
@@ -216,6 +216,7 @@ globalThis.FutureSocieties = (function() {
 			}
 			// subjugating the supreme race
 			if (arc2FSes.contains("FSSubjugationist") && arc2.FSSubjugationistRace === arc1.FSSupremacistRace) {
+				shared.delete("FSSupremacist");
 				conflicting.push(["FSSupremacist", "FSSubjugationist"]);
 			}
 		}
@@ -227,6 +228,7 @@ globalThis.FutureSocieties = (function() {
 			}
 			// believe the subjugated race is supreme
 			if (arc2FSes.contains("FSSupremacist") && arc2.FSSupremacistRace === arc1.FSSubjugationistRace) {
+				shared.delete("FSSubjugationist");
 				conflicting.push(["FSSubjugationist", "FSSupremacist"]);
 			}
 		}