diff --git a/src/Groups.jl b/src/Groups.jl
index 1bb6c3a..4253c46 100644
--- a/src/Groups.jl
+++ b/src/Groups.jl
@@ -324,6 +324,7 @@ replace_all(W::GWord, subst_dict::Dict{GWord, GWord}) = replace_all!(deepcopy(W)
 #
 ###############################################################################
 
+include("FPGroups.jl")
 include("automorphism_groups.jl")
 
 end # of module Groups