diff --git a/README.md b/README.md
index bc0f194..033cb19 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ Currently, the only way to install the utility is from source. It requires you t
 
 ### Assume a role
 
-`aws-role --role-arn [role] [command]`
+`aws-role --role-arn=[role] [command]`
 
 This will assume `[role]` and then run `[command]` using that role.
 
diff --git a/cmd/root.go b/cmd/root.go
index 4874b51..4b8179a 100644
--- a/cmd/root.go
+++ b/cmd/root.go
@@ -23,7 +23,7 @@ var (
 )
 
 var rootCmd = &cobra.Command{
-	Use:   "aws-role --role-arn [role] [command]",
+	Use:   "aws-role --role-arn=[role] [command]",
 	Short: "Assume a role in AWS and optionally run a command",
 	Long: `
 Run a command within the context of assuming a role. This is not persistent, and will only affect the command that is passed in.