diff --git a/README.adoc b/README.adoc
index 870f84d..d6b533e 100644
--- a/README.adoc
+++ b/README.adoc
@@ -33,7 +33,7 @@ environment variables which can override configuration values.
 
 === Environment Variables
 
-[cols="^1,<.^4,^1,^1"]
+[cols="^1,<.^4,^1"]
 |===
 .^| Name
 .^| Default Value