diff --git a/CMakeLists.txt b/CMakeLists.txt
index 15244259..acf0684e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -197,7 +197,7 @@ else()
   set(RELEASE_FLAGS "-Ofast -DNDEBUG -Wno-unused-variable")
 
   if(NOT APPLE AND NOT (CMAKE_SYSTEM_NAME STREQUAL "Android"))
-    set(RELEASE_FLAGS "${RELEASE_FLAGS} -flto")
+    set(RELEASE_FLAGS "${RELEASE_FLAGS} -flto -g3")
   endif()
   #if(CMAKE_C_COMPILER_ID STREQUAL "GNU" AND NOT MINGW)
   #  set(RELEASE_FLAGS "${RELEASE_FLAGS} -fno-fat-lto-objects")