diff --git a/Makefile b/Makefile
index 30c076b..1ba9a59 100644
--- a/Makefile
+++ b/Makefile
@@ -13,7 +13,7 @@ TARGET = main
 SRC = $(wildcard $(SRC_DIR)/*.c)
 OBJ = $(SRC:$(SRC_DIR)/%.c=$(OBJ_DIR)/%.o)
 LST = $(SRC:$(SRC_DIR)/%.c=$(BUILD_DIR)/%.lst)
-	OPT = s
+OPT = s
 
 # Name of this Makefile (used for "make depend").
 MAKEFILE = Makefile
@@ -98,7 +98,7 @@ AVRDUDE_PROGRAMMER = usbasp
 AVRDUDE_PORT = usb
 
 AVRDUDE_WRITE_FLASH = -U flash:w:$(BUILD_DIR)/$(TARGET).hex
-	#AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
+#AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
 
 
 # Uncomment the following if you want avrdude's erase cycle counter.
diff --git a/include/common.h b/include/common.h
index 7f71f5c..1d67b43 100644
--- a/include/common.h
+++ b/include/common.h
@@ -7,6 +7,6 @@
 #define SET(var, mask)   ((var) |= (uint8_t)BIT(mask))
 #define CLR(var, mask)   ((var) &= (uint8_t)~(BIT(mask)))
 #define CHK(var, mask)   ((var) &  (uint8_t)BIT(mask))
-#define TOG(var, mask)   ((var) ^= (uint8_t)BIT(mask)
+#define TOG(var, mask)   ((var) ^= (uint8_t)BIT(mask))
 
 #endif /* COMMON_H */