diff --git a/src/experimental/mod.rs b/src/experimental/mod.rs
new file mode 100644
index 0000000..8337712
--- /dev/null
+++ b/src/experimental/mod.rs
@@ -0,0 +1 @@
+//
diff --git a/src/lib.rs b/src/lib.rs
index f69e29b..d1afd31 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,5 +1,6 @@
 #![allow(unused_imports)]
 //
+mod experimental;
 mod newtype;
 
 /// Alias for [format] macro.