diff --git a/libraries/AP_HAL_Linux/CANSocketIface.cpp b/libraries/AP_HAL_Linux/CANSocketIface.cpp
index c2203afa39c50..578afd57f53d1 100644
--- a/libraries/AP_HAL_Linux/CANSocketIface.cpp
+++ b/libraries/AP_HAL_Linux/CANSocketIface.cpp
@@ -221,7 +221,7 @@ void CANIface::_poll(bool read, bool write)
 }
 
 bool CANIface::configureFilters(const CanFilterConfig* const filter_configs,
-                              const std::uint16_t num_configs)
+                              const uint16_t num_configs)
 {
     if (filter_configs == nullptr || mode_ != FilteredMode) {
         return false;
diff --git a/libraries/AP_HAL_SITL/CANSocketIface.cpp b/libraries/AP_HAL_SITL/CANSocketIface.cpp
index 84c6147509a54..9f9a631237b24 100644
--- a/libraries/AP_HAL_SITL/CANSocketIface.cpp
+++ b/libraries/AP_HAL_SITL/CANSocketIface.cpp
@@ -259,7 +259,7 @@ void CANIface::_poll(bool read, bool write)
 }
 
 bool CANIface::configureFilters(const CanFilterConfig* const filter_configs,
-                              const std::uint16_t num_configs)
+                              const uint16_t num_configs)
 {
 #if 0
     if (filter_configs == nullptr || mode_ != FilteredMode) {