diff --git a/scripts/Makefile.stm32f0 b/scripts/Makefile.stm32f0
index 89d3daf..0d823e6 100644
--- a/scripts/Makefile.stm32f0
+++ b/scripts/Makefile.stm32f0
@@ -22,7 +22,6 @@ LIBS += -l$(OPENCM3_LIBNAME)
 STLINK_PORT ?= :4242
 
 obj-y += source/core/spi.o
-obj-y += source/drivers/spi_flash.o
 
 $(OPENCM3_DIR)/lib/lib$(OPENCM3_LIBNAME).a:
 	@if [ ! -e libopencm3/.git ]; then \
diff --git a/scripts/Makefile.stm32f1 b/scripts/Makefile.stm32f1
index 6a13436..2781c8b 100644
--- a/scripts/Makefile.stm32f1
+++ b/scripts/Makefile.stm32f1
@@ -22,7 +22,6 @@ LIBS += -l$(OPENCM3_LIBNAME)
 STLINK_PORT ?= :4242
 
 obj-y += source/core/spi.o
-obj-y += source/drivers/spi_flash.o
 
 $(OPENCM3_DIR)/lib/lib$(OPENCM3_LIBNAME).a:
 	@if [ ! -e libopencm3/.git ]; then \
diff --git a/source/platform/Makefile b/source/platform/Makefile
index 09f2a89..760e9b4 100644
--- a/source/platform/Makefile
+++ b/source/platform/Makefile
@@ -1 +1,6 @@
+ifeq ($(TARGET),host)
+else
+obj-y += source/platform/spi_flash.o
+endif
+
 -include source/platform/$(TARGET)/Makefile
diff --git a/source/drivers/spi_flash.c b/source/platform/spi_flash.c
similarity index 100%
rename from source/drivers/spi_flash.c
rename to source/platform/spi_flash.c