diff --git a/src/ADC/ADC.c b/src/ADC/ADC.c
index 5991362..f651f9e 100644
--- a/src/ADC/ADC.c
+++ b/src/ADC/ADC.c
@@ -47,7 +47,7 @@ void ADC_Setup(void)
 
 void ADC_PowerOn(void)
 {
-    RegEdit_SetBit((void *)&ADC1->CTLR2, ADC_ADON);
+    RegEdit_u32_SetBit((void *)&ADC1->CTLR2, ADC_ADON);
 }
 
 void ADC_Init(uint8_t pin_num)
diff --git a/src/ADC/ADC.h b/src/ADC/ADC.h
index 5428d4c..43b0a98 100644
--- a/src/ADC/ADC.h
+++ b/src/ADC/ADC.h
@@ -11,6 +11,7 @@
 #define ADC_H
 
 #include <stdbool.h>
+#include <stddef.h>
 #include <stdint.h>
 
 /**