diff --git a/CMakeLists.txt b/CMakeLists.txt
index 51ad8ea..65b940f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -54,10 +54,10 @@ else()
     set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} -ffast-math")
 endif()
 
-set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -O3 -mpretend-cmove -fexpensive-optimizations -fomit-frame-pointer -finline-functions")
+set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -O3 -fexpensive-optimizations -fomit-frame-pointer -finline-functions")
 set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -std=c++14 -O3 -g0 -s -fomit-frame-pointer -fstrict-aliasing")
 
-set(CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELWITHDEBINFO} -O3 -mpretend-cmove -fexpensive-optimizations -fomit-frame-pointer -finline-functions")
+set(CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELWITHDEBINFO} -O3 -fexpensive-optimizations -fomit-frame-pointer -finline-functions")
 set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} -std=c++14 -O3 -fomit-frame-pointer -fstrict-aliasing")
 
 set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -O0 -g -Wall -Wextra")