diff --git a/CMakeLists.txt b/CMakeLists.txt
index bc0d696..736b5cc 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -31,6 +31,7 @@ set(CMAKE_C_FLAGS "-std=c99 -ffreestanding -fno-builtin -Wall -Wextra")
 set(CMAKE_C_FLAGS_DEBUG "-g -O0")
 set(CMAKE_C_FLAGS_RELEASE "-O3")
 set(CMAKE_ASM_FLAGS "")
+set(CMAKE_ASM_FLAGS_DEBUG "")
 set(CMAKE_ASM_FLAGS_RELEASE "")
 
 include_directories(