diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8e2ce2f9..f76b3b97 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -110,6 +110,7 @@ set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS} -g -O0 -std=gnu11 -Wall ${CMAKE_C_FLAG
 
 if(CMAKE_SYSTEM_NAME MATCHES "Windows")
     add_definitions(-DXQC_SYS_WINDOWS=1)
+    set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /Zi")
 endif()