1 files changed, 1 insertions, 1 deletions

diff --git a/appveyor.yml b/appveyor.yml
index 5c23f8a..37ffa8e 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,4 +1,4 @@
-version: {build}
+version: "{build}"
 install:
 - cmd: python -m pip install tox
 build_script: