diff --git a/groups/mappingclassgroup.jl b/groups/mappingclassgroup.jl
index 50388ad..1f2713d 100644
--- a/groups/mappingclassgroup.jl
+++ b/groups/mappingclassgroup.jl
@@ -1,6 +1,6 @@
 module MappingClassGroups
 
-using Nemo
+using AbstractAlgebra
 using Groups
 
 ###############################################################################
@@ -80,7 +80,7 @@ function generatingset(N::Int)
        (A[2i+3]*A[2i+2]*A[2i+4]*A[2i+3])*( n(i+1)*A[2i+2]*A[2i+1]*A[2i]  )
     end
 
-    push!(relations, X*n(N)*inv(n(N)*X))
+    # push!(relations, X*n(N)*inv(n(N)*X))
 
     relations = [relations; [inv(rel) for rel in relations]]
     Groups.add_rels!(MCGroup, Dict(rel => MCGroup() for rel in relations))