diff --git a/third_party/imgui/CMakeLists.txt b/third_party/imgui/CMakeLists.txt
index ea21751..bbc64be 100644
--- a/third_party/imgui/CMakeLists.txt
+++ b/third_party/imgui/CMakeLists.txt
@@ -66,3 +66,4 @@ target_include_directories(${PROJECT_NAME} PUBLIC ${CMAKE_CURRENT_SOURCE_DIR} gl
 target_precompile_headers(${PROJECT_NAME} PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/pch.h)
 
 add_definitions(-DIMGUI_IMPL_OPENGL_LOADER_CUSTOM)
+add_compile_definitions(-DIMGUI_DEFINE_MATH_OPERATORS)