diff --git a/cmake/system.cmake b/cmake/system.cmake
index 66e95c6d3..68df2d900 100644
--- a/cmake/system.cmake
+++ b/cmake/system.cmake
@@ -174,7 +174,7 @@ if (DEFINED TARGET)
   endif()
   if (DEFINED HAVE_AVX)
 	if (NOT NO_AVX)
-    set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -mavx")
+    set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -mavx -mfma")
 	endif()
   endif()
   if (DEFINED HAVE_AVX2)
diff --git a/kernel/Makefile b/kernel/Makefile
index fd9105fee..fb1d5d39a 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -5,10 +5,6 @@ endif
 TOPDIR	= ..
 include $(TOPDIR)/Makefile.system
 
-ifdef HAVE_FMA3
-CFLAGS += -mfma
-endif
-
 ifeq ($(ARCH), power)
 ifeq ($(C_COMPILER), CLANG)
  override CFLAGS += -fno-integrated-as