diff --git a/CMakeLists.txt b/CMakeLists.txt
index 457fa086..c0f60d55 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -96,18 +96,13 @@ else()
 endif()
 
 # add compile flags
-if ("${CMAKE_BUILD_TYPE}" STREQUAL "Debug")
-    message("Build in Debug mode")
-    set(CMAKE_C_FLAGS "-O0 -g -Wall -fstack-protector-all -Wl,-z,relro,-z,now,-z,noexecstack -pipe -fPIC ${CMAKE_C_FLAGS}")
-    set(CMAKE_CXX_FLAGS "-O0 -g -Wall -fstack-protector-all -Wl,-z,relro,-z,now,-z,noexecstack -pipe -fPIC ${CMAKE_CXX_FLAGS}")
-    if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
-        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -rdynamic")
-        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -rdynamic")
-    endif()
-else()
-    set(CMAKE_C_FLAGS "-O2 -Wall -fPIC -fstack-protector-all -Wl,-z,relro,-z,now,-z,noexecstack -pipe ${CMAKE_C_FLAGS}")
-    set(CMAKE_CXX_FLAGS "-O2 -Wall -fPIC -fstack-protector-all -Wl,-z,relro,-z,now,-z,noexecstack -pipe ${CMAKE_CXX_FLAGS}")
-endif ()
+message("Build in Debug mode")
+set(CMAKE_C_FLAGS "-O0 -g -Wall -fstack-protector-all -Wl,-z,relro,-z,now,-z,noexecstack -pipe -fPIC ${CMAKE_C_FLAGS}")
+set(CMAKE_CXX_FLAGS "-O0 -g -Wall -fstack-protector-all -Wl,-z,relro,-z,now,-z,noexecstack -pipe -fPIC ${CMAKE_CXX_FLAGS}")
+if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -rdynamic")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -rdynamic")
+endif()
 
 # force __FILE__ to show relative path of file, from source directory, as cmake project makes __FILE__ absolute directory
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D__FILE__='\"$(subst $(realpath ${CMAKE_SOURCE_DIR})/,,$(abspath $<))\"' -Wno-builtin-macro-redefined")