diff --git a/drivers/auxiliary/pegasus_upb.cpp b/drivers/auxiliary/pegasus_upb.cpp
index 6aa290a2d8..437d3e19cc 100644
--- a/drivers/auxiliary/pegasus_upb.cpp
+++ b/drivers/auxiliary/pegasus_upb.cpp
@@ -1356,7 +1356,7 @@ bool PegasusUPB::sensorUpdated(const std::vector<std::string> &result, uint8_t s
 //////////////////////////////////////////////////////////////////////
 ///
 //////////////////////////////////////////////////////////////////////
-bool PegasusUPB::stepperUpdated(const std::vector<std::string> &result, u_int8_t index)
+bool PegasusUPB::stepperUpdated(const std::vector<std::string> &result, uint8_t index)
 {
     if (lastStepperData.empty())
         return true;
diff --git a/drivers/auxiliary/pegasus_upb.h b/drivers/auxiliary/pegasus_upb.h
index 47546f7453..7b6cae6de9 100644
--- a/drivers/auxiliary/pegasus_upb.h
+++ b/drivers/auxiliary/pegasus_upb.h
@@ -141,7 +141,7 @@ class PegasusUPB : public INDI::DefaultDevice, public INDI::FocuserInterface, pu
          * If the previous stepper data is empty then this will always
          * return true.
          */
-        bool stepperUpdated(const std::vector<std::string> &result, u_int8_t index);
+        bool stepperUpdated(const std::vector<std::string> &result, uint8_t index);
 
         int PortFD { -1 };
         bool setupComplete { false };