diff --git a/CMakeLists.txt b/CMakeLists.txt
index cd2bd51..37c0e4d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,6 +5,7 @@ cmake_minimum_required(VERSION 4.1.0)
 
 set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_CXX_FLAGS "/EHsc /D_AMD64_ /DWIN32_LEAN_AND_MEAN") # Set C++ exception handler, define platform and ignore some unused headers
+set(CMAKE_CXX_FLAGS_RELEASE "/O2 /DNDEBUG") # Release debug flags
 
 project(dbd-unlocker LANGUAGES CXX CSharp)
 set_property(GLOBAL PROPERTY USE_FOLDERS ON)