diff --git a/Makefile b/Makefile
index e0bdeb14a3..1da6d412d2 100644
--- a/Makefile
+++ b/Makefile
@@ -1025,7 +1025,14 @@ endif
 
 ifneq ($(filter $(TARGET),$(F3_TARGETS) $(F4_TARGETS) $(F7_TARGETS)),)
 DSPLIB := $(ROOT)/lib/main/DSP_Lib
-DEVICE_FLAGS += -DARM_MATH_CM4 -DARM_MATH_MATRIX_CHECK -DARM_MATH_ROUNDING -D__FPU_PRESENT=1 -DUNALIGNED_SUPPORT_DISABLE
+DEVICE_FLAGS += -DARM_MATH_MATRIX_CHECK -DARM_MATH_ROUNDING -D__FPU_PRESENT=1 -DUNALIGNED_SUPPORT_DISABLE
+
+ifneq ($(filter $(TARGET),$(F3_TARGETS)) $(F4_TARGETS)),)
+DEVICE_FLAGS += -DARM_MATH_CM4
+endif
+ifneq ($(filter $(TARGET),$(F7_TARGETS)),)
+DEVICE_FLAGS += -DARM_MATH_CM7
+endif
 
 INCLUDE_DIRS += $(DSPLIB)/Include