diff --git a/lib/plugins/interactiveCli/initializeService.js b/lib/plugins/interactiveCli/initializeService.js
index ebc8a0ac188..879df679d2e 100644
--- a/lib/plugins/interactiveCli/initializeService.js
+++ b/lib/plugins/interactiveCli/initializeService.js
@@ -80,7 +80,7 @@ module.exports = {
 
               process.chdir(projectDir);
               serverless.config.servicePath = projectDir;
-              getServerlessConfigFile.cache.delete(serverless);
+              getServerlessConfigFile.delete(serverless);
               getServerlessConfigFile(serverless);
             })
             .then(serverlessConfigFile => {
diff --git a/lib/utils/getServerlessConfigFile.js b/lib/utils/getServerlessConfigFile.js
index 6277555e2ca..2847d383640 100644
--- a/lib/utils/getServerlessConfigFile.js
+++ b/lib/utils/getServerlessConfigFile.js
@@ -4,6 +4,7 @@ const _ = require('lodash');
 const BbPromise = require('bluebird');
 const path = require('path');
 const resolveModulePath = require('ncjsm/resolve');
+const memoizee = require('memoizee');
 const spawn = require('child-process-ext/spawn');
 const fileExists = require('./fs/fileExists');
 const readFile = require('./fs/readFile');
@@ -107,25 +108,23 @@ const handleJsOrTsConfigFile = configFile =>
     }
   });
 
-const getServerlessConfigFile = _.memoize(
-  serverless =>
-    getServerlessConfigFilePath(serverless).then(configFilePath => {
-      if (!configFilePath) return null;
-      const fileExtension = path.extname(configFilePath);
-      const isJSOrTsConfigFile = fileExtension === '.js' || fileExtension === '.ts';
+const getServerlessConfigFile = memoizee(serverless =>
+  getServerlessConfigFilePath(serverless).then(configFilePath => {
+    if (!configFilePath) return null;
+    const fileExtension = path.extname(configFilePath);
+    const isJSOrTsConfigFile = fileExtension === '.js' || fileExtension === '.ts';
 
-      return (isJSOrTsConfigFile
-        ? handleJsOrTsConfigFile(configFilePath)
-        : readFile(configFilePath)
-      ).then(config => {
-        if (_.isPlainObject(config)) return config;
-        throw new ServerlessError(
-          `${path.basename(configFilePath)} must export plain object`,
-          'INVALID_CONFIG_OBJECT_TYPE'
-        );
-      });
-    }),
-  serverless => `${serverless.processedInput.options.config} - ${serverless.config.servicePath}`
+    return (isJSOrTsConfigFile
+      ? handleJsOrTsConfigFile(configFilePath)
+      : readFile(configFilePath)
+    ).then(config => {
+      if (_.isPlainObject(config)) return config;
+      throw new ServerlessError(
+        `${path.basename(configFilePath)} must export plain object`,
+        'INVALID_CONFIG_OBJECT_TYPE'
+      );
+    });
+  })
 );
 
 module.exports = { getConfigFilePath, getServerlessConfigFile, getServerlessConfigFilePath };