diff --git a/gap/bytable.gi b/gap/bytable.gi
index ff32ac4..a7a4f68 100644
--- a/gap/bytable.gi
+++ b/gap/bytable.gi
@@ -344,7 +344,7 @@ InstallMethod(PrintObj, "for an element of magma by multiplication table",
 
 ## Property of a collection that its elements know their multiplication table
 InstallImmediateMethod(IsBuiltFromMultiplicationTable, "for a collection",
-              [IsCollection],
+              [IsCollection], 1,
               C -> HasMultiplicationTable(ElementsFamily(FamilyObj(C)))
 );