diff --git a/src/base.ts b/src/base.ts
index 48522c75..6472b29b 100644
--- a/src/base.ts
+++ b/src/base.ts
@@ -1,5 +1,5 @@
 import {Command} from '@oclif/core'
-import {openSync, writeSync} from 'fs'
+import {openSync, writeSync, mkdirSync} from 'fs'
 import * as path from 'path'
 
 export abstract class AutocompleteBase extends Command {
@@ -30,6 +30,7 @@ export abstract class AutocompleteBase extends Command {
   }
 
   writeLogFile(msg: string) {
+    mkdirSync(this.config.cacheDir, {recursive: true})
     const entry = `[${(new Date()).toISOString()}] ${msg}\n`
     const fd = openSync(this.acLogfilePath, 'a')
     writeSync(fd, entry)