diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5932643..9a61cc8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -169,7 +169,7 @@ if(BUILD_TESTING)
 
   # tsan
 
-  if(NOT CMAKE_CROSSCOMPILING)
+  if(NOT CMAKE_CROSSCOMPILING AND NOT CMAKE_BUILD_TYPE STREQUAL Debug)
     add_executable(tsan_driver ConflictSet.cpp FuzzTestDriver.cpp)
     target_compile_options(tsan_driver PRIVATE ${TEST_FLAGS} -fsanitize=thread)
     target_link_options(tsan_driver PRIVATE -fsanitize=thread)