diff --git a/stm-firmware/Makefile b/stm-firmware/Makefile
index f622520..a13d344 100644
--- a/stm-firmware/Makefile
+++ b/stm-firmware/Makefile
@@ -13,7 +13,7 @@ LIBRARYPATH = -L. -Lmathlib
 LIBRARIES = -larm_cortexM4lf_math -lm
 
 DEFINES = -DSTM32F407xx -DSTM32F4XX -DARM_MATH_CM4 -DHSE_VALUE=8000000UL
-mapfile = memory-mapping
+MAPFILE_BASE = memory-mapping
 
 export GIT_VER = $(shell git describe --always --dirty --tags)
 DEFINES += -DGIT_VER=$(GIT_VER)
@@ -61,34 +61,39 @@ OBJCOPY=$(CROSS_COMPILE)objcopy
 OBJDUMP=$(CROSS_COMPILE)objdump
 SIZE=$(CROSS_COMPILE)size
 
-LFLAGS = -mlittle-endian -mthumb -mcpu=cortex-m4 -mthumb-interwork
-LFLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16 --disable-newlib-supplied-syscalls -nostartfiles
-LFLAGS += -Tstm32f407vet6_flash.ld -Wl,-Map=$(mapfile).map
-
-CFLAGS = -c -mlittle-endian -mthumb -mcpu=cortex-m4 -mthumb-interwork
-CFLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16 -nostartfiles
-CFLAGS += -Wall -Wextra -Wold-style-declaration -Wuninitialized -Wmaybe-uninitialized -Wunused-parameter -Wimplicit-fallthrough=3 -Wsign-compare
-
 CFLAGS_RELEASE = -O3 -g
 CFLAGS_DEBUG = -O0 -g
 
 LFLAGS_RELEASE = -Wl,--gc-sections
 LFLAGS_DEBUG =
 
+CFLAGS =
+LFLAGS =
+
 ifneq ($(DEBUGBUILD),true)
 DEFINES += $(RELEASE_DEFINES)
 CFLAGS += $(CFLAGS_RELEASE)
 LFLAGS += $(LFLAGS_RELEASE)
 target = $(TARGET_BASE)-release
 OBJDIR = $(OBJDIR_BASE)/release
+MAPFILE = $(MAPFILE_BASE)-release
 else
 DEFINES += $(DEBUG_DEFINES)
 target = $(TARGET_BASE)-debug
 CFLAGS += $(CFLAGS_DEBUG)
 LFLAGS += $(LFLAGS_DEBUG)
 OBJDIR = $(OBJDIR_BASE)/debug
+MAPFILE = $(MAPFILE_BASE)-debug
 endif
 
+LFLAGS += -mlittle-endian -mthumb -mcpu=cortex-m4 -mthumb-interwork
+LFLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16 --disable-newlib-supplied-syscalls -nostartfiles
+LFLAGS += -Tstm32f407vet6_flash.ld -Wl,-Map=$(MAPFILE).map
+
+CFLAGS += -c -mlittle-endian -mthumb -mcpu=cortex-m4 -mthumb-interwork
+CFLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16 -nostartfiles
+CFLAGS += -Wall -Wextra -Wold-style-declaration -Wuninitialized -Wmaybe-uninitialized -Wunused-parameter -Wimplicit-fallthrough=3 -Wsign-compare
+
 ####################################################################################
 
 OBJ = $(CFILES:%.c=$(OBJDIR)/%.c.o)