diff --git a/src/descriptions/familySummaries.js b/src/descriptions/familySummaries.js
index 9097ecfa48686fc3b93d292474ecd7e54d240fe6..b23198a38f2ba063cc7912d232f75d57ee26d489 100644
--- a/src/descriptions/familySummaries.js
+++ b/src/descriptions/familySummaries.js
@@ -527,7 +527,7 @@ App.Desc.family = (function() {
 				parents.push(V.missingTable[V.PC.father]);
 			}
 		}
-		parents.concat(V.slaves.filter((s) => isParentP(V.PC, s)));
+		parents = parents.concat(V.slaves.filter((s) => isParentP(V.PC, s)));
 
 		if (parents.length > 1) {
 			r.push(`<br>Your parents are <span class="lightgreen">${knownSlave(parents[0].ID)} and ${knownSlave(parents[1].ID)}.</span>`);