diff --git a/src/drivers/kinetis/adc/adc.cpp b/src/drivers/kinetis/adc/adc.cpp
index a37c64d1d5..73f2d16d4d 100644
--- a/src/drivers/kinetis/adc/adc.cpp
+++ b/src/drivers/kinetis/adc/adc.cpp
@@ -217,7 +217,7 @@ ADC::init()
 	irqstate_t flags = px4_enter_critical_section();
 
 	_REG(KINETIS_SIM_SCGC3) |= SIM_SCGC3_ADC1;
-	rCFG1(1) = ADC_CFG1_ADICLK_BUSCLK | ADC_CFG1_MODE_1616BIT | ADC_CFG1_ADIV_DIV8;
+	rCFG1(1) = ADC_CFG1_ADICLK_BUSCLK | ADC_CFG1_MODE_1213BIT | ADC_CFG1_ADIV_DIV8;
 	rCFG2(1) = 0;
 	rSC2(1) = ADC_SC2_REFSEL_DEFAULT;