diff --git a/utils/pdbt/common.h b/utils/pdbt/common.h
index 2146109a29d..a014e7d97e4 100644
--- a/utils/pdbt/common.h
+++ b/utils/pdbt/common.h
@@ -36,7 +36,7 @@
  -1000..-1 used in dtm to indicate a carrier id and that no more nodes will follow (leaf node compression).
  -1001 used in dtm to mark a pointer to a child node as NULL.
 */
-#define MIN_PDB_CARRIERID 1
+#define MIN_PDB_CARRIERID 0
 #define MAX_PDB_CARRIERID 999
 #define OTHER_CARRIERID 1000
 #define MAX_CARRIERID 1000