diff --git a/cmake/QtCompilerOptimization.cmake b/cmake/QtCompilerOptimization.cmake
index 9f7bc349645..2e98dc31c2a 100644
--- a/cmake/QtCompilerOptimization.cmake
+++ b/cmake/QtCompilerOptimization.cmake
@@ -53,7 +53,7 @@ if(GCC OR CLANG)
     set(QT_CFLAGS_RDSEED     "-mrdseed")
     set(QT_CFLAGS_AVX        "-mavx")
     set(QT_CFLAGS_AVX2       "-mavx2")
-    set(QT_CFLAGS_ARCH_HASWELL "-march=core-avx2")
+    set(QT_CFLAGS_ARCH_HASWELL "-march=haswell")
     set(QT_CFLAGS_AVX512F    "-mavx512f")
     set(QT_CFLAGS_AVX512ER   "-mavx512er")
     set(QT_CFLAGS_AVX512CD   "-mavx512cd")