diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7fb7b1e..f2e7d50 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -80,6 +80,12 @@
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address")
 endif()
 
+option(ENABLE_TSAN "Enable thread sanitizer support" OFF)
+if(ENABLE_TSAN AND NOT WIN32 AND NOT APPLE AND CMAKE_SIZEOF_VOID_P MATCHES 8)
+  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=thread")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=thread")
+endif()
+
 if(NOT DEFINED BUILD_WINVNC)
   set(BUILD_WINVNC 1)
 endif()