diff --git a/lib/A4988_Stepper/src/A4988_Stepper.cpp b/lib/A4988_Stepper/src/A4988_Stepper.cpp
index ad83d3e87..16f9b1608 100644
--- a/lib/A4988_Stepper/src/A4988_Stepper.cpp
+++ b/lib/A4988_Stepper/src/A4988_Stepper.cpp
@@ -101,12 +101,12 @@ void A4988_Stepper::adjustMicrosteps() {
  }
 
 void A4988_Stepper::setMIS(short oneToSixteen) {
-   motor_MIC = oneToSixteen;
+   motor_MIS = oneToSixteen;
    adjustMicrosteps();
  }
 
  short A4988_Stepper::getMIS(void) {
-     return motor_MIC;
+     return motor_MIS;
  }
 
  void A4988_Stepper::setRPM(int howManyRounds) {
diff --git a/lib/A4988_Stepper/src/A4988_Stepper.h b/lib/A4988_Stepper/src/A4988_Stepper.h
index b3aa27c35..b0e16ed31 100644
--- a/lib/A4988_Stepper/src/A4988_Stepper.h
+++ b/lib/A4988_Stepper/src/A4988_Stepper.h
@@ -23,7 +23,7 @@ class A4988_Stepper {
     // constructor:
     A4988_Stepper( int motor_spr
               ,   int motor_rpm
-              , short motor_mic
+              , short motor_mis
               , short motor_dir_pin
               , short motor_stp_pin
               , short motor_ena_pin