diff --git a/README.md b/README.md
index fafa827..e44cb80 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,6 @@
 # Cosmo
+[![AppVeyor](https://ci.appveyor.com/api/projects/status/github/CPunch/Cosmo?svg=true)](https://ci.appveyor.com/project/CPunch/Cosmo)
+
 Cosmo is a portable scripting language loosely based off of Lua. Cosmo easily allows the user to extend the language through the use of Proto objects, which describe the behavior of Objects. For example the following is a simple Vector Proto which describes behavior for a Vector-like object.
 
 ```lua
diff --git a/appveyor.yml b/appveyor.yml
index 365d9b3..9587987 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -5,6 +5,11 @@ version: 'cosmo-0.1.{build}'
 # only:
 #  - main
 
+# only run CI if we changed actual code
+only_commits:
+  files:
+    - src/
+
 # images we're using
 image:
   - Ubuntu2004