diff --git a/appveyor.yml b/appveyor.yml
index eb839723..72d25a0c 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -3,7 +3,7 @@ clone_folder: c:\gopath\src\github.com\lifei6671\mindoc
 
 environment:
   GOPATH: c:\gopath
-  GOVERSION: 1.10
+  GOVERSION: "1.10"
   matrix:
     - tbs_arch: "x86"
       tbs_tools: "mingw"