diff --git a/CMLibCotire.cmake b/CMLibCotire.cmake
index af483ce..ed09326 100644
--- a/CMLibCotire.cmake
+++ b/CMLibCotire.cmake
@@ -1,6 +1,10 @@
 include(cotire OPTIONAL)
 
 if(COMMAND cotire)
-  option(CMLIB_COTIRE_ENABLE_PRECOMPILED_HEADER "Enable precompiled headers" OFF)
+  if(CMAKE_BUILD_TYPE STREQUAL "Debug")
+    option(CMLIB_COTIRE_ENABLE_PRECOMPILED_HEADER "Enable precompiled headers" ON)
+  else()
+    option(CMLIB_COTIRE_ENABLE_PRECOMPILED_HEADER "Enable precompiled headers" OFF)
+  endif()
   option(CMLIB_COTIRE_ADD_UNITY_BUILD "Enable unity build" OFF)
 endif()