diff --git a/analog.c b/analog.c
index 162b429..f04af5c 100644
--- a/analog.c
+++ b/analog.c
@@ -9,10 +9,7 @@
 
 uint8_t adc_running_mask, adc_counter;
 
-#if		ANALOG_MASK & 1
-	#define	ANALOG_START			0
-	#define	ANALOG_START_MASK	1
-#elif	ANALOG_MASK & 2
+#if	ANALOG_MASK & 2
 	#define	ANALOG_START			1
 	#define	ANALOG_START_MASK	2
 #elif	ANALOG_MASK & 4
@@ -33,6 +30,10 @@ uint8_t adc_running_mask, adc_counter;
 #elif	ANALOG_MASK & 128
 	#define	ANALOG_START			7
 	#define	ANALOG_START_MASK	128
+#else
+	// ANALOG_MASK == 1 or 0, either way defines are the same except they're not used if ANALOG_MASK == 0
+	#define	ANALOG_START			0
+	#define	ANALOG_START_MASK	1
 #endif
 
 volatile uint16_t adc_result[8] __attribute__ ((__section__ (".bss")));