diff --git a/beam/examples/beamsh/beamsh.go b/beam/examples/beamsh/beamsh.go
index c444d0a..d8b4011 100644
--- a/beam/examples/beamsh/beamsh.go
+++ b/beam/examples/beamsh/beamsh.go
@@ -323,6 +323,8 @@ func GetHandler(name string) Handler {
 		return CmdOpenfile
 	} else if name == "spawn" {
 		return CmdSpawn
+	} else if name == "chdir" {
+		return CmdChdir
 	}
 	return nil
 }
diff --git a/beam/examples/beamsh/builtins.go b/beam/examples/beamsh/builtins.go
index d4e084d..08b8a62 100644
--- a/beam/examples/beamsh/builtins.go
+++ b/beam/examples/beamsh/builtins.go
@@ -436,3 +436,7 @@ func CmdOpenfile(args []string, stdout, stderr io.Writer, in beam.Receiver, out
 		}
 	}
 }
+
+func CmdChdir(args []string, stdout, stderr io.Writer, in beam.Receiver, out beam.Sender) {
+	os.Chdir(args[1])
+}