diff --git a/CMakeLists.txt b/CMakeLists.txt
index 58dce1b8a2dd7d282bb3dd7c863f1e9d7ee43a5d..d2b26c52ef9158c1f62ed5afade2133329e55c2d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -397,7 +397,7 @@ if (WIN32) # TODO(nick) Should do based upon compiler (VS)
 else()
 	add_definitions(-DUNIX)
 	# -fdiagnostics-color
-	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17 -fPIC -msse3 -Wall -Werror=unused-result -Werror=return-type -Wno-deprecated-copy")
+	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17 -fPIC -msse3 -Wall -Werror=unused-result -Werror=return-type")
 	set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -pg")
 	set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O3 -mfpmath=sse")
 	set(OS_LIBS "dl")