diff --git a/Makefile b/Makefile
--- a/Makefile
+++ b/Makefile
@@ -7,7 +7,7 @@ OPTLVL:=3 # Optimization level, can be [
 #PROJECT_NAME:=$(notdir $(lastword $(CURDIR)))
 TOP:=$(shell readlink -f "../..")
 DISCOVERY:=Utilities/STM32L100C-Discovery
-STMLIB:=Libraries
+STMLIB:=libraries
 STD_PERIPH:=$(STMLIB)/STM32L1xx_StdPeriph_Driver
 STARTUP:=$(STMLIB)/CMSIS/Device/ST/STM32L1xx/Source/Templates/gcc_ride7
 LINKER_SCRIPT:=$(CURDIR)/stm32-flash.ld