diff --git a/cmd_line_main.c b/cmd_line_main.c
index d1ab0ae..7218e76 100644
--- a/cmd_line_main.c
+++ b/cmd_line_main.c
@@ -50,6 +50,7 @@
 
     // Type and size of return from sizeof() varies. These will never be large so cast is safe
     // TODO: use fputs_wrapper to output these
+    printf("sizeof(QCBORTrackNesting) %d\n", (uint32_t)sizeof(QCBORTrackNesting));
     printf("sizeof(QCBOREncodeContext) %d\n", (uint32_t)sizeof(QCBOREncodeContext));
     printf("sizeof(QCBORDecodeContext) %d\n", (uint32_t)sizeof(QCBORDecodeContext));
     printf("sizeof(QCBORDecodeNesting) %d\n", (uint32_t)sizeof(QCBORDecodeNesting));