diff --git a/module3/exo3/Tools.jl b/module3/exo3/Tools.jl
new file mode 100644
index 0000000000000000000000000000000000000000..c507a3ab7b887a0ff34183a9daf171585aed08fe
--- /dev/null
+++ b/module3/exo3/Tools.jl
@@ -0,0 +1,25 @@
+cd(@__DIR__)
+
+module Tools
+
+function run_julia(args...)
+    cd(@__DIR__)
+    julia = Base.julia_cmd()[1]
+    run(`$julia --color=yes --startup-file=no --project $args`)
+    nothing
+end
+
+setup() = run_julia("setup.jl")
+
+compile() = run_julia("compile.jl")
+
+function weave()
+    cd(@__DIR__)
+
+    opts = String[]
+    isfile("Exercice.so") && push!(opts, "-JExercice.so")
+
+    run_julia(opts..., "make.jl")
+end
+
+end
diff --git a/module3/exo3/utils.jl b/module3/exo3/utils.jl
index b998954c6819b4ffc770d9f1bfdf9a2475cc89c9..5f222946fe3bca4f3c7e35719bb87a6d97d48e6b 100644
--- a/module3/exo3/utils.jl
+++ b/module3/exo3/utils.jl
@@ -93,28 +93,3 @@ function disp()
         m.captures[1]
     end |> print
 end
-
-
-module Exercice
-
-function run_julia(args...)
-    cd(@__DIR__)
-    julia = Base.julia_cmd()[1]
-    run(`$julia --color=yes --startup-file=no --project $args`)
-    nothing
-end
-
-setup() = run_julia("setup.jl")
-
-compile() = run_julia("compile.jl")
-
-function weave()
-    cd(@__DIR__)
-
-    opts = String[]
-    isfile("Exercice.so") && push!(opts, "-JExercice.so")
-
-    run_julia(opts..., "make.jl")
-end
-
-end