diff --git a/fibonacci.go b/src/go-tour/fibonacci.go
similarity index 100%
rename from fibonacci.go
rename to src/go-tour/fibonacci.go
diff --git a/src/go-tour/go.mod b/src/go-tour/go.mod
new file mode 100644
index 0000000..fd34ab9
--- /dev/null
+++ b/src/go-tour/go.mod
@@ -0,0 +1,5 @@
+module go-tour
+
+go 1.16
+
+require golang.org/x/tour v0.0.0-20210329144203-e4a37d30d6fc
diff --git a/reader.go b/src/go-tour/reader.go
similarity index 100%
rename from reader.go
rename to src/go-tour/reader.go
diff --git a/rot13reader.go b/src/go-tour/rot13reader.go
similarity index 100%
rename from rot13reader.go
rename to src/go-tour/rot13reader.go
diff --git a/slices.go b/src/go-tour/slices.go
similarity index 100%
rename from slices.go
rename to src/go-tour/slices.go
diff --git a/sqrt.go b/src/go-tour/sqrt.go
similarity index 100%
rename from sqrt.go
rename to src/go-tour/sqrt.go
diff --git a/sqrterr.go b/src/go-tour/sqrterr.go
similarity index 100%
rename from sqrterr.go
rename to src/go-tour/sqrterr.go
diff --git a/stringer.go b/src/go-tour/stringer.go
similarity index 100%
rename from stringer.go
rename to src/go-tour/stringer.go
diff --git a/wc.go b/src/go-tour/wc.go
similarity index 100%
rename from wc.go
rename to src/go-tour/wc.go