diff --git a/fsw/src/to_lab_app.c b/fsw/src/to_lab_app.c
index 91b83c7..7ff73c3 100644
--- a/fsw/src/to_lab_app.c
+++ b/fsw/src/to_lab_app.c
@@ -107,7 +107,7 @@ int32 TO_LAB_RemoveAll(const TO_LAB_RemoveAll_t *data);
 int32 TO_LAB_RemovePacket(const TO_LAB_RemovePacket_t *data);
 int32 TO_LAB_ResetCounters(const TO_LAB_ResetCounters_t *data);
 int32 TO_LAB_SendDataTypes(const TO_LAB_SendDataTypes_t *data);
-int32 TO_LAB_SendHousekeeping(const CCSDS_CommandPacket_t *data);
+int32 TO_LAB_SendHousekeeping(const CFE_SB_CmdHdr_t *data);
 
 
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
@@ -293,7 +293,7 @@ void TO_LAB_process_commands(void)
                        break;
 
                   case TO_LAB_SEND_HK_MID:
-                      TO_LAB_SendHousekeeping((const CCSDS_CommandPacket_t *)MsgPtr);
+                      TO_LAB_SendHousekeeping((const CFE_SB_CmdHdr_t *)MsgPtr);
                       break;
 
                   default:
@@ -440,7 +440,7 @@ int32 TO_LAB_SendDataTypes(const TO_LAB_SendDataTypes_t *data)
 /* TO_LAB_SendHousekeeping() -- HK status                          */
 /* Does not increment CommandCounter                               */
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-int32 TO_LAB_SendHousekeeping(const CCSDS_CommandPacket_t *data)
+int32 TO_LAB_SendHousekeeping(const CFE_SB_CmdHdr_t *data)
 {
     CFE_SB_TimeStampMsg(&TO_LAB_Global.HkBuf.MsgHdr);
     CFE_SB_SendMsg(&TO_LAB_Global.HkBuf.MsgHdr);