diff --git a/tests/ADC/test_ADC.cpp b/tests/ADC/test_ADC.cpp
index 2308ed3..cdc7a97 100644
--- a/tests/ADC/test_ADC.cpp
+++ b/tests/ADC/test_ADC.cpp
@@ -133,12 +133,11 @@ TEST(test_ADC, ADC_EnablePasses)
 
 TEST(test_ADC, ADC_DisablePasses)
 {
-    /*
     mock().expectOneCall("RegEdit_ClearBit")
-        .withPointerParameter("reg", (void *) &ADC0.CTRLA)
-        .withUnsignedIntParameter("bit_num", 0);
-    */
-    //ADC_Disable();
+        .withPointerParameter("reg", (void *) &ADCSRA)
+        .withUnsignedIntParameter("bit_num", ADEN);
+
+    ADC_Disable();
 }