diff --git a/gap/byconj.gd b/gap/byconj.gd
index fbd9642..1b3209d 100644
--- a/gap/byconj.gd
+++ b/gap/byconj.gd
@@ -4,7 +4,7 @@
 
 DeclareCategory( "IsConjugatorObject", 
                  IsMultiplicativeElement and IsLeftQuotientElement and
-                 IsLDistributiveElement and IsIdempotent);
+                 IsLSelfDistElement and IsIdempotent);
 DeclareCategoryCollections("IsConjugatorObject");
 
 DeclareAttribute("ConjugatorFamily", IsFamily);