diff --git a/src/index.js b/src/index.js
index 6e10d2d3c..7c3b8a3d6 100644
--- a/src/index.js
+++ b/src/index.js
@@ -15,6 +15,10 @@ import substituteBreakpointAtRules from './lib/substituteBreakpointAtRules'
 import substituteClassApplyAtRules from './lib/substituteClassApplyAtRules'
 
 const plugin = postcss.plugin('tailwind', (options = {}) => {
+  if (_.isFunction(options)) {
+    options = options()
+  }
+
   const config = mergeConfig(defaultConfig, options)
 
   return postcss([