diff --git a/src/encoders/stm32hwencoder/STM32HWEncoder.cpp b/src/encoders/stm32hwencoder/STM32HWEncoder.cpp
index 456cf75..9f66db0 100644
--- a/src/encoders/stm32hwencoder/STM32HWEncoder.cpp
+++ b/src/encoders/stm32hwencoder/STM32HWEncoder.cpp
@@ -5,7 +5,7 @@
 /*
   HardwareEncoder(int cpr)
 */
-STM32HWEncoder::STM32HWEncoder(unsigned int _ppr, int8_t pinA, int8_t pinB, int8_t pinI) {
+STM32HWEncoder::STM32HWEncoder(unsigned int _ppr, int pinA, int pinB, int pinI) {
     cpr = _ppr * 4; // 4x for quadrature
     _pinA = digitalPinToPinName(pinA);
     _pinB = digitalPinToPinName(pinB);
diff --git a/src/encoders/stm32hwencoder/STM32HWEncoder.h b/src/encoders/stm32hwencoder/STM32HWEncoder.h
index 98b14e5..c49176e 100644
--- a/src/encoders/stm32hwencoder/STM32HWEncoder.h
+++ b/src/encoders/stm32hwencoder/STM32HWEncoder.h
@@ -16,7 +16,7 @@ class STM32HWEncoder : public Sensor {
     Encoder class constructor
     @param ppr  impulses per rotation  (cpr=ppr*4)
     */
-    explicit STM32HWEncoder(unsigned int ppr, int8_t pinA, int8_t pinB, int8_t pinI=-1);
+    explicit STM32HWEncoder(unsigned int ppr, int pinA, int pinB, int pinI=-1);
 
     void init() override;
     int needsSearch() override;