diff --git a/Makefile b/Makefile
index be232150f1f..e8388f7bf25 100644
--- a/Makefile
+++ b/Makefile
@@ -93,9 +93,6 @@ include $(ROOT)/make/$(OSFAMILY).mk
 # include the tools makefile
 include $(ROOT)/make/tools.mk
 
-# default xtal value for F4 targets
-HSE_VALUE       ?= 8000000
-
 # Search path for sources
 VPATH           := $(SRC_DIR):$(SRC_DIR)/startup
 FATFS_DIR        = $(ROOT)/lib/main/FatFS
@@ -115,7 +112,11 @@ ifeq ($(wildcard $(CONFIG_FILE)),)
 $(error Config file not found: $(CONFIG_FILE))
 endif
 
-TARGET       := $(shell grep " FC_TARGET_MCU" $(CONFIG_FILE) | awk '{print $$3}' )
+TARGET        := $(shell grep " FC_TARGET_MCU" $(CONFIG_FILE) | awk '{print $$3}' )
+HSE_VALUE_MHZ := $(shell grep " SYSTEM_HSE_MHZ" $(CONFIG_FILE) | awk '{print $$3}' )
+ifneq ($(HSE_VALUE_MHZ),)
+HSE_VALUE     := $(shell echo $$(( $(HSE_VALUE_MHZ) * 1000000 )) )
+endif
 
 ifeq ($(TARGET),)
 $(error No TARGET identified. Is the config.h valid for $(CONFIG)?)
@@ -132,6 +133,9 @@ TARGET := $(DEFAULT_TARGET)
 endif
 endif #CONFIG
 
+# default xtal value
+HSE_VALUE       ?= 8000000
+
 BASE_CONFIGS      = $(sort $(notdir $(patsubst %/,%,$(dir $(wildcard $(ROOT)/src/config/*/config.h)))))
 BASE_TARGETS      = $(sort $(notdir $(patsubst %/,%,$(dir $(wildcard $(ROOT)/src/main/target/*/target.mk)))))
 CI_TARGETS       := $(BASE_TARGETS) CRAZYBEEF4SX1280 CRAZYBEEF4FR IFLIGHT_BLITZ_F722
diff --git a/src/main/platform.h b/src/main/platform.h
index d3adfdc5e99..472de03caea 100644
--- a/src/main/platform.h
+++ b/src/main/platform.h
@@ -32,10 +32,6 @@
 #include "config.h"
 #endif
 
-#if defined(SYSTEM_HSE_MHZ) && !defined(HSE_VALUE)
-#define HSE_VALUE (SYSTEM_HSE_MHZ * 1000000)
-#endif
-
 // MCU specific platform from drivers/XX
 #include "platform_mcu.h"