diff --git a/Makefile b/Makefile
--- a/Makefile
+++ b/Makefile
@@ -8,6 +8,7 @@ OPTLVL:=3 # Optimization level, can be [
 TOP:=$(shell readlink -f "../..")
 DISCOVERY:=Utilities/STM32L100C-Discovery
 STMLIB:=libraries
+OLEDDRV:=oleddrv
 STD_PERIPH:=$(STMLIB)/STM32L1xx_StdPeriph_Driver
 STARTUP:=$(STMLIB)/CMSIS/Device/ST/STM32L1xx/Source/Templates/gcc_ride7
 LINKER_SCRIPT:=$(CURDIR)/stm32-flash.ld
@@ -18,6 +19,7 @@ INCLUDE+=-I$(STMLIB)/CMSIS/Include
 INCLUDE+=-I$(STMLIB)/CMSIS/Device/ST/STM32L1xx/Include
 INCLUDE+=-I$(STD_PERIPH)/inc
 INCLUDE+=-I$(DISCOVERY)
+INCLUDE+=-I$(STMLIB)/$(OLEDDRV)
 #INCLUDE+=-I$(STMLIB)/STM32_USB_OTG_Driver/inc
 #INCLUDE+=-I$(STMLIB)/STM32_USB_Device_Library/Class/hid/inc
 #INCLUDE+=-I$(STMLIB)/STM32_USB_Device_Library/Core/inc
@@ -37,6 +39,7 @@ SRC=main.c
 SRC+=stm32l1xx_it.c
 SRC+=system_stm32l1xx.c
 SRC+=stm32l100c_discovery.c
+SRC+=ssd1306.c
 
 # Discovery Source Files
 #SRC+=stm32f4_discovery_lis302dl.c