diff --git a/Tools/AP_Periph/AP_Periph.h b/Tools/AP_Periph/AP_Periph.h
index d47c8617debb5..2723d589e0aa1 100644
--- a/Tools/AP_Periph/AP_Periph.h
+++ b/Tools/AP_Periph/AP_Periph.h
@@ -359,6 +359,10 @@ class AP_Periph_FW {
     AP_Networking networking;
 #endif
 
+#ifdef HAL_PERIPH_ENABLE_RTC
+    AP_RTC rtc;
+#endif
+
 #if HAL_GCS_ENABLED
     GCS_Periph _gcs;
 #endif
diff --git a/Tools/AP_Periph/Parameters.cpp b/Tools/AP_Periph/Parameters.cpp
index 85c57798313ea..80b3ae7d44a21 100644
--- a/Tools/AP_Periph/Parameters.cpp
+++ b/Tools/AP_Periph/Parameters.cpp
@@ -608,6 +608,12 @@ const AP_Param::Info AP_Periph_FW::var_info[] = {
     GSCALAR(can_mirror_ports, "CAN_MIRROR_PORTS", 0),
 #endif // HAL_PERIPH_CAN_MIRROR
 
+#ifdef HAL_PERIPH_ENABLE_RTC
+    // @Group: RTC
+    // @Path: ../libraries/AP_RTC/AP_RTC.cpp
+    GOBJECT(rtc,                   "RTC",    AP_RTC),
+#endif
+
     AP_VAREND
 };
 
diff --git a/Tools/AP_Periph/Parameters.h b/Tools/AP_Periph/Parameters.h
index 030444030ae80..fb4a628b02109 100644
--- a/Tools/AP_Periph/Parameters.h
+++ b/Tools/AP_Periph/Parameters.h
@@ -84,6 +84,7 @@ class Parameters {
         k_param_battery_balance,
         k_param_battery_hide_mask,
         k_param_can_mirror_ports,
+        k_param_rtc,
     };
 
     AP_Int16 format_version;