diff --git a/ArduSub/Log.cpp b/ArduSub/Log.cpp
index e035738455..6cf54c31d3 100644
--- a/ArduSub/Log.cpp
+++ b/ArduSub/Log.cpp
@@ -257,6 +257,36 @@ void Sub::Log_Write_GuidedTarget(uint8_t target_type, const Vector3f& pos_target
 // @Field: DCRt: desired climb rate
 // @Field: CRt: climb rate
 
+// @LoggerMessage: D16
+// @Description: Generic 16-bit-signed-integer storage
+// @Field: TimeUS: Time since system startup
+// @Field: Id: Data type identifier
+// @Field: Value: Value
+
+// @LoggerMessage: D32
+// @Description: Generic 32-bit-signed-integer storage
+// @Field: TimeUS: Time since system startup
+// @Field: Id: Data type identifier
+// @Field: Value: Value
+
+// @LoggerMessage: DFLT
+// @Description: Generic float storage
+// @Field: TimeUS: Time since system startup
+// @Field: Id: Data type identifier
+// @Field: Value: Value
+
+// @LoggerMessage: DU16
+// @Description: Generic 16-bit-unsigned-integer storage
+// @Field: TimeUS: Time since system startup
+// @Field: Id: Data type identifier
+// @Field: Value: Value
+
+// @LoggerMessage: DU32
+// @Description: Generic 32-bit-unsigned-integer storage
+// @Field: TimeUS: Time since system startup
+// @Field: Id: Data type identifier
+// @Field: Value: Value
+
 // type and unit information can be found in
 // libraries/AP_Logger/Logstructure.h; search for "log_Units" for
 // units and "Format characters" for field type information