diff --git a/Makefile b/Makefile
index 3aee5945b..dc8ab21d4 100644
--- a/Makefile
+++ b/Makefile
@@ -9,6 +9,8 @@ OSX_APP_DIR = build/$(OSX_APP_NAME)
 OSX_APP_CONTENTS_DIR = $(OSX_APP_DIR)/Contents
 OSX_APP_RESOURCES_DIR = $(OSX_APP_CONTENTS_DIR)/Resources
 
+OSX_APP_CODESIGN_IDENTITY ?= dev
+
 FRONTEND_EXPORT_DIR = frontend/out
 
 all: $(BIN_DIR)
@@ -51,6 +53,8 @@ $(OSX_APP_CONTENTS_DIR)/MacOS/bbgo-desktop: $(OSX_APP_CONTENTS_DIR)/MacOS .FORCE
 	go build -tags web -o $@ ./cmd/bbgo-desktop
 
 desktop-osx: $(OSX_APP_CONTENTS_DIR)/MacOS/bbgo-desktop $(OSX_APP_CONTENTS_DIR)/Info.plist $(OSX_APP_RESOURCES_DIR)/icon.icns
+	codesign --deep --force --verbose --sign "$(OSX_APP_CODESIGN_IDENTITY)" $(OSX_APP_DIR)
+	codesign --verify -vvvv $(OSX_APP_DIR)
 
 desktop: desktop-osx