diff --git a/include/osmocom/core/logging.h b/include/osmocom/core/logging.h
index ad775b9..cc3919b 100644
--- a/include/osmocom/core/logging.h
+++ b/include/osmocom/core/logging.h
@@ -92,7 +92,7 @@
 #define DLCTRL		-8	/*!< Control Interface */
 #define DLGTP		-9	/*!< GTP (GPRS Tunneling Protocol */
 #define DLSTATS		-10	/*!< Statistics */
-#define DLGSUP		11	/*!< Generic Subscriber Update Protocol */
+#define DLGSUP		-11	/*!< Generic Subscriber Update Protocol */
 #define OSMO_NUM_DLIB	11	/*!< Number of logging sub-systems in libraries */
 
 /*! Configuration of singgle log category / sub-system */