diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9dab10f0b..ff221ffef 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -373,10 +373,11 @@ if(WITH_PROF)
     set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -pg")
 endif()
 
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wuninitialized -Wno-deprecated-declarations")
 if(OPTION_OMP)
     find_package(OpenMP)
     if(OPENMP_FOUND)
-        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS} -Werror=unknown-pragmas -Wall -Wno-unused-result -Wno-deprecated-declarations")
+        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS} -Werror=unknown-pragmas")
     endif()
 endif()