diff --git a/README.md b/README.md
index 39fac69..01ef905 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ Check out the [screenshots on the wiki](https://github.com/codic12/worm/wiki/Scr
 Install Nim >= 1.6.0, for example through Choosenim. Clone this repo and run
 
 ```
-$ nimble build -d:release --gc:arc
+$ nimble build -d:release
 ```
 And you should end up with two binaries; strip and use!
 
diff --git a/config.nims b/config.nims
new file mode 100644
index 0000000..29610b5
--- /dev/null
+++ b/config.nims
@@ -0,0 +1 @@
+switch("gc", "arc")