diff --git a/etcdctlv3/README.md b/etcdctlv3/README.md
index 99611d9fd..33d278a0d 100644
--- a/etcdctlv3/README.md
+++ b/etcdctlv3/README.md
@@ -183,7 +183,7 @@ Watch watches events stream on keys or prefixes. The watch command runs until it
 
 - hex -- print out key and value as hex encode string
 
-- i -- begins an interactive watch session
+- interactive -- begins an interactive watch session
 
 - prefix -- watch on a prefix if prefix is set.
 
diff --git a/etcdctlv3/command/watch_command.go b/etcdctlv3/command/watch_command.go
index 86717614f..025e7bf04 100644
--- a/etcdctlv3/command/watch_command.go
+++ b/etcdctlv3/command/watch_command.go
@@ -44,7 +44,7 @@ func NewWatchCommand() *cobra.Command {
 	}
 
 	cmd.Flags().BoolVar(&watchHex, "hex", false, "print out key and value as hex encode string for text format")
-	cmd.Flags().BoolVar(&watchInteractive, "i", false, "interactive mode")
+	cmd.Flags().BoolVarP(&watchInteractive, "interactive", "i", false, "interactive mode")
 	cmd.Flags().BoolVar(&watchPrefix, "prefix", false, "watch on a prefix if prefix is set")
 	cmd.Flags().Int64Var(&watchRev, "rev", 0, "revision to start watching")