diff --git a/README.md b/README.md
index 287cae9..60920d4 100644
--- a/README.md
+++ b/README.md
@@ -20,15 +20,15 @@ Usage of ./expiredis:
 Set a TTL of 3600 (1 hour) for all keys without a TTL, processing 1000 keys at a time
 
 ```bash
-expiredis -limit -1 -count 1000 -set-ttl 3600
+expiredis -limit -1 -count 1000 -set-ttl 3600 -dry-run=false
 ```
 
 Delete all keys matching `foo:*`
 ```bash
-expiredis -limit -1 -pattern "foo:*" -delete
+expiredis -limit -1 -pattern "foo:*" -delete -dry-run=false
 ```
 
 Reduce expiry by 86400 seconds of keys matching `bar:*` with a minimum TTL of 86400 (1 day)
 ```bash
-expiredis -limit -1 -pattern "bar:*" -subtract-ttl 86400
+expiredis -limit -1 -pattern "bar:*" -subtract-ttl 86400 -dry-run=false
 ```
diff --git a/main.go b/main.go
index ff734ae..4e4a781 100644
--- a/main.go
+++ b/main.go
@@ -36,7 +36,7 @@ func main() {
 	fs := flag.NewFlagSetWithEnvPrefix(NAME, strings.ToUpper(NAME), flag.ExitOnError)
 
 	fs.BoolVar(&verbose, "verbose", false, "debug logging")
-	fs.BoolVar(&dryRun, "dry-run", false, "dry run, no destructive commands")
+	fs.BoolVar(&dryRun, "dry-run", true, "dry run, no destructive commands")
 	fs.StringVar(&url, "url", "redis://", "URI of Redis server (https://www.iana.org/assignments/uri-schemes/prov/redis)")
 	fs.StringVar(&pattern, "pattern", "*", "Pattern of keys to process")
 	fs.IntVar(&limit, "limit", 100, "Maximum number keys to process")