diff --git a/.internal/baseDelay.js b/.internal/baseDelay.js
deleted file mode 100644
index 4c39c234b..000000000
--- a/.internal/baseDelay.js
+++ /dev/null
@@ -1,18 +0,0 @@
-/**
- * The base implementation of `delay` and `defer` which accepts `args`
- * to provide to `func`.
- *
- * @private
- * @param {Function} func The function to delay.
- * @param {number} wait The number of milliseconds to delay invocation.
- * @param {Array} args The arguments to provide to `func`.
- * @returns {number|Object} Returns the timer id or timeout object.
- */
-function baseDelay(func, wait, args) {
-  if (typeof func != 'function') {
-    throw new TypeError('Expected a function');
-  }
-  return setTimeout(() => func(...args), wait);
-}
-
-export default baseDelay;
diff --git a/defer.js b/defer.js
index 9cd24eb1e..3b288644c 100644
--- a/defer.js
+++ b/defer.js
@@ -1,5 +1,3 @@
-import baseDelay from './.internal/baseDelay.js';
-
 /**
  * Defers invoking the `func` until the current call stack has cleared. Any
  * additional arguments are provided to `func` when it's invoked.
@@ -15,7 +13,10 @@ import baseDelay from './.internal/baseDelay.js';
  * // => Logs 'deferred' after one millisecond.
  */
 function defer(func, ...args) {
-  return baseDelay(func, 1, args);
+  if (typeof func != 'function') {
+    throw new TypeError('Expected a function');
+  }
+  return setTimeout(() => func(...args), 1);
 }
 
 export default defer;
diff --git a/delay.js b/delay.js
index 1b687aed7..8d5ee5ddd 100644
--- a/delay.js
+++ b/delay.js
@@ -1,4 +1,3 @@
-import baseDelay from './.internal/baseDelay.js';
 import toNumber from './toNumber.js';
 
 /**
@@ -17,7 +16,10 @@ import toNumber from './toNumber.js';
  * // => Logs 'later' after one second.
  */
 function delay(func, wait, ...args) {
-  return baseDelay(func, toNumber(wait) || 0, args);
+  if (typeof func != 'function') {
+    throw new TypeError('Expected a function');
+  }
+  return setTimeout(() => func(...args), toNumber(wait) || 0);
 }
 
 export default delay;