diff --git a/ArduSub/Parameters.cpp b/ArduSub/Parameters.cpp
index 323eca0385..4271329482 100644
--- a/ArduSub/Parameters.cpp
+++ b/ArduSub/Parameters.cpp
@@ -36,12 +36,12 @@ const AP_Param::Info Sub::var_info[] = {
     // @User: Standard
     GSCALAR(surface_depth, "SURFACE_DEPTH", SURFACE_DEPTH_DEFAULT),
 
-    // @Param: SYSID_SW_MREV
+    // @Param: FORMAT_VERSION
     // @DisplayName: Eeprom format version number
     // @Description: This value is incremented when changes are made to the eeprom format
     // @User: Advanced
     // @ReadOnly: True
-    GSCALAR(format_version, "SYSID_SW_MREV",   0),
+    GSCALAR(format_version, "FORMAT_VERSION",   0),
 
     // @Param: SYSID_THISMAV
     // @DisplayName: MAVLink system ID of this vehicle