diff --git a/index.js b/index.js
index 738651e92..0b6cd3f3a 100644
--- a/index.js
+++ b/index.js
@@ -9,7 +9,7 @@ const printDocToString = require("./src/doc-printer").printDocToString;
 const normalizeOptions = require("./src/options").normalize;
 const parser = require("./src/parser");
 const printDocToDebug = require("./src/doc-debug").printDocToDebug;
-const resolveConfig = require("./src/resolve-config").resolveConfig;
+const config = require("./src/resolve-config");
 
 function guessLineEnding(text) {
   const index = text.indexOf("\n");
@@ -338,7 +338,8 @@ module.exports = {
     }
   },
 
-  resolveConfig,
+  resolveConfig: config.resolveConfig,
+  clearConfigCache: config.clearCache,
 
   version,
 
diff --git a/src/resolve-config.js b/src/resolve-config.js
index bf265cba1..10f66f5a8 100644
--- a/src/resolve-config.js
+++ b/src/resolve-config.js
@@ -25,6 +25,10 @@ function resolveConfig(filePath, opts) {
   );
 }
 
+function clearCache() {
+  withCache.clearCaches();
+}
+
 function resolveConfigFile(filePath) {
   return noCache.load(filePath).then(result => {
     if (result) {
@@ -64,5 +68,6 @@ function pathMatchesGlobs(filePath, patterns, excludedPatterns) {
 
 module.exports = {
   resolveConfig,
-  resolveConfigFile
+  resolveConfigFile,
+  clearCache
 };