diff --git a/include/openbsc/debug.h b/include/openbsc/debug.h
index de00b29..65e197d 100644
--- a/include/openbsc/debug.h
+++ b/include/openbsc/debug.h
@@ -40,6 +40,7 @@
 	DPCU,
 	DVLR,
 	DIUCS,
+	DSIGTRAN,
 	Debug_LastEntry,
 };