diff --git a/src/endWeek/saRivalries.js b/src/endWeek/saRivalries.js
index 6d72b0621b4c064ccc9da9bcf580f887fd37f849..70115d6ca50103d897b38ea2fe016d14b7722d53 100644
--- a/src/endWeek/saRivalries.js
+++ b/src/endWeek/saRivalries.js
@@ -26,7 +26,7 @@ App.SlaveAssignment.rivalries = (function() {
 			if (isSlaveAvailable(slave) && slave.assignment !== Job.CONFINEMENT) {
 				generateRivalry(slave);
 			}
-		} else {
+		} else if (slave.rivalry) {
 			existingRivalry(slave);
 		}
 		if (slave.rivalry) {