diff --git a/groups/autfreegroup.jl b/groups/autfreegroup.jl
index 717048b..666f7c7 100644
--- a/groups/autfreegroup.jl
+++ b/groups/autfreegroup.jl
@@ -1,11 +1,9 @@
 module SpecialAutomorphisms
 
-using Nemo
+using AbstractAlgebra
 using Groups
 
-if VERSION >= v"0.6.0"
-   import Nemo.Generic.perm
-end
+import AbstractAlgebra.perm
 
 ###############################################################################
 #
@@ -47,12 +45,12 @@ function AutFG_emb(A::AutGroup, p::perm)
     return A(Groups.perm_autsymbol(p))
 end
 
-function (g::WreathProductElem)(a::AutGroupElem)
+function (g::WreathProductElem)(a::Groups.Automorphism)
     g = AutFG_emb(parent(a),g)
     return g*a*g^-1
 end
 
-function (p::perm)(a::AutGroupElem)
+function (p::perm)(a::Groups.Automorphism)
     g = AutFG_emb(parent(a),p)
     return g*a*g^-1
 end
diff --git a/groups/speciallinear.jl b/groups/speciallinear.jl
index 1eb863e..87c3b04 100644
--- a/groups/speciallinear.jl
+++ b/groups/speciallinear.jl
@@ -3,9 +3,7 @@ module SpecialLinear
 using Nemo
 using Groups
 
-if VERSION >= v"0.6.0"
-   import Nemo.Generic.perm
-end
+import Nemo.Generic.perm
 
 ###############################################################################
 #