diff --git a/include/libopencm3/efm32/lg/adc.h b/include/libopencm3/efm32/lg/adc.h
index f0a0fe02..a2988da1 100644
--- a/include/libopencm3/efm32/lg/adc.h
+++ b/include/libopencm3/efm32/lg/adc.h
@@ -70,7 +70,7 @@
 #define ADC_CTRL_LPFMODE_SHIFT	(4)
 #define ADC_CTRL_LPFMODE_MASK	(0x3 << ADC_CTRL_LPFMODE_SHIFT)
 #define ADC_CTRL_LPFMODE(v)	\
-	(((v) << ADC_CTRL_LPFMODEC_SHIFT) & ADC_CTRL_LPFMODEC_MASK)
+	(((v) << ADC_CTRL_LPFMODE_SHIFT) & ADC_CTRL_LPFMODE_MASK)
 #define ADC_CTRL_LPFMODE_BYPASS	ADC_CTRL_LPFMODE(0)
 #define ADC_CTRL_LPFMODE_DECAP	ADC_CTRL_LPFMODE(1)
 #define ADC_CTRL_LPFMODE_RCFILT	ADC_CTRL_LPFMODE(2)