diff --git a/CMakeLists.txt b/CMakeLists.txt
index ae6b3840..53a6db75 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -54,12 +54,9 @@ set(CMAKE_JAVA_TARGET_OUTPUT_DIR ${PROJECT_BINARY_DIR}/jars)
 
 ######## Set compiler flags ########
 include(GenerateExportHeader)
-set(CMAKE_CXX_FLAGS " -Wall -pedantic -fstack-protector-strong --param=ssp-buffer-size=4 ${CMAKE_CXX_FLAGS}")
-set(CMAKE_CXX_FLAGS_RELEASE " -O3 -D_FORTIFY_SOURCE=2 ${CMAKE_CXX_FLAGS_RELEASE}")
 if(UNIX AND APPLE)
     set(CMAKE_CXX_FLAGS " -stdlib=libc++ ${CMAKE_CXX_FLAGS}")
 endif()
-set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -Werror=return-type -O0")
 
 ##################################### Set Application options #####################################