diff --git a/kernel/CMakeLists.txt b/kernel/CMakeLists.txt
index fca7d1f7..6fdc6fbf 100644
--- a/kernel/CMakeLists.txt
+++ b/kernel/CMakeLists.txt
@@ -74,8 +74,6 @@ target_link_libraries(moon luna-freestanding)
 
 target_compile_definitions(moon PRIVATE IN_MOON)
 
-target_compile_options(moon PRIVATE -Os)
-
 target_compile_options(moon PRIVATE -Wall -Wextra -Werror -Wvla -Wsign-conversion)
 target_compile_options(moon PRIVATE -Wdisabled-optimization -Wformat=2 -Winit-self)
 target_compile_options(moon PRIVATE -Wmissing-include-dirs -Wswitch-default -Wcast-qual -Wundef) 
@@ -94,6 +92,8 @@ if(MOON_DEBUG_SYMBOLS)
     message(STATUS "Building Moon with debug symbols")
     target_compile_options(moon PRIVATE -ggdb)
     include(debug.cmake)
+else()
+    target_compile_options(moon PRIVATE -Os)
 endif()
 
 target_link_options(moon PRIVATE -lgcc -Wl,--build-id=none -z max-page-size=0x1000 -mcmodel=kernel)