diff --git a/CMakeLists.txt b/CMakeLists.txt
index 376a060..d21c9bd 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -79,10 +79,6 @@
         add_link_options("$<$<CONFIG:Release>:/CETCOMPAT>")
     endif()
 else ()
-    set(CMAKE_C_FLAGS_RELEASE "-O2")
-    set(CMAKE_CXX_FLAGS_RELEASE "-O2")
-    set(CMAKE_C_FLAGS_DEBUG "-g -O1")
-    set(CMAKE_CXX_FLAGS_DEBUG "-g -O1")
     add_compile_options(-Wall -Wuninitialized)
     check_c_compiler_flag(-Wno-stringop-truncation NoStringOpTruncation)