diff --git a/fsw/cfe-core/ut-stubs/ut_sb_stubs.c b/fsw/cfe-core/ut-stubs/ut_sb_stubs.c
index b410d1b88..d072b4995 100644
--- a/fsw/cfe-core/ut-stubs/ut_sb_stubs.c
+++ b/fsw/cfe-core/ut-stubs/ut_sb_stubs.c
@@ -873,3 +873,12 @@ void CFE_SB_SetTotalMsgLength (CFE_SB_MsgPtr_t MsgPtr,uint16 TotalLength)
     UT_Stub_CopyFromLocal(UT_KEY(CFE_SB_SetTotalMsgLength), &TotalLength, sizeof(TotalLength));
 }
 
+uint32 CFE_SB_GetPktType(CFE_SB_MsgId_t MsgId)
+{
+    int32 status;
+
+    status = UT_DEFAULT_IMPL(CFE_SB_GetPktType);
+
+    return (uint8) status;
+}
+