diff --git a/src/function.js b/src/function.js
index fd9263f..057aa19 100644
--- a/src/function.js
+++ b/src/function.js
@@ -11,11 +11,16 @@ import { concat as iconcat, isIterable, iter } from './list.js'
  */
 export const id = x => x
 
+export const tap = curry((f, x) => {
+  f(x)
+  return x
+})
+
 /**
  * @param {...Fn} fns
  * @returns {(x: any) => any}
  */
-export const pipe = (...fns) => x => fns.reduce((v, f) => f(v), x)
+export const pipe = ([f, ...fns]) => (...args) => fns.reduce((v, f) => f(v), f(...args))
 
 export const concat = dispatch(['fantasy-land/concat', 'concat'],
   (b, a) => {