diff --git a/spec/theme-manager-spec.coffee b/spec/theme-manager-spec.coffee
index 5d99a4d52..e203f861d 100644
--- a/spec/theme-manager-spec.coffee
+++ b/spec/theme-manager-spec.coffee
@@ -12,6 +12,8 @@ describe "ThemeManager", ->
   configDirPath = NylasEnv.getConfigDirPath()
 
   beforeEach ->
+    cache = NylasEnv.fileListCache()
+    cache.lessCacheImportPaths = null
     spyOn(console, "log")
     spyOn(console, "warn")
     spyOn(console, "error")
diff --git a/src/less-compile-cache.coffee b/src/less-compile-cache.coffee
index 6bf2d8c45..e1fa0fc14 100644
--- a/src/less-compile-cache.coffee
+++ b/src/less-compile-cache.coffee
@@ -2,8 +2,6 @@ _ = require 'underscore'
 path = require 'path'
 LessCache = require 'less-cache'
 
-fileCacheImportPaths = null
-
 # {LessCache} wrapper used by {ThemeManager} to read stylesheets.
 module.exports =
 class LessCompileCache