diff --git a/Config.h b/Config.h
index c738e21..9d62604 100644
--- a/Config.h
+++ b/Config.h
@@ -44,11 +44,13 @@
 // For the original Arduino Due pin layout
 // #define ARDUINO_DUE_PAPA
 
+#if defined(STM32F1)
+// For the SQ6POG board
+#define STM32F1_POG
+#else
 // For the ZUM V1.0 and V1.0.1 boards pin layout
 #define ARDUINO_DUE_ZUM_V10
-
-// For the SQ6POG board
-// #define STM32F1_POG
+#endif
 
 // For the SP8NTH board
 // #define ARDUINO_DUE_NTH
diff --git a/Makefile.CMSIS b/Makefile.CMSIS
index 69e7a3e..2bce2ab 100644
--- a/Makefile.CMSIS
+++ b/Makefile.CMSIS
@@ -65,7 +65,7 @@ COMMON_FLAGS =-mthumb -mlittle-endian -mcpu=$(MCPU)
 COMMON_FLAGS+= -Wall
 COMMON_FLAGS+= -I. -I$(CMSISDIR)/Include -I$(CMSISDIR)/Device/ST/STM32F1xx/Include -I$(SYSDIR)
 COMMON_FLAGS+=  $(addprefix -I,$(INCDIR))
-COMMON_FLAGS+= -D$(MCU) -DMADEBYMAKEFILE
+COMMON_FLAGS+= -D$(MCU) -DMADEBYMAKEFILE -DSTM32F1
 COMMON_FLAGS+= -Os -flto -ffunction-sections -fdata-sections
 COMMON_FLAGS+= -g
 # Assembler flags