diff --git a/main.go b/main.go
index 8b2c755..a8d5606 100644
--- a/main.go
+++ b/main.go
@@ -36,7 +36,7 @@ func main() {
 	dumpCmd.Flags().String("source", "./acme.json", "Path to 'acme.json' file.")
 	dumpCmd.Flags().String("dest", "./dump", "Path to store the dump content.")
 	dumpCmd.Flags().String("crt-ext", ".crt", "The file extension of the generated certificates")
-	dumpCmd.Flags().String("key-ext", ".key", "The file extension of the generated privates keys")
+	dumpCmd.Flags().String("key-ext", ".key", "The file extension of the generated private keys")
 	rootCmd.AddCommand(dumpCmd)
 
 	var versionCmd = &cobra.Command{
diff --git a/readme.md b/readme.md
index aadfd6c..f271608 100644
--- a/readme.md
+++ b/readme.md
@@ -32,7 +32,7 @@ Flags:
       --crt-ext string   The file extension of the generated certificates (default ".crt")
       --dest string      Path to store the dump content. (default "./dump")
   -h, --help             help for dump
-      --key-ext string   The file extension of the generated privates keys (default ".key")
+      --key-ext string   The file extension of the generated private keys (default ".key")
       --source string    Path to 'acme.json' file. (default "./acme.json")
 ```
 
@@ -48,7 +48,6 @@ traefik-certs-dumper dump --source ./acme.json --dest ./dump
 
 ```bash
 traefik-certs-dumper dump --crt-ext=.pem --key-ext=.pem
-
 ```
 
 - https://github.com/containous/traefik/issues/4381