diff --git a/include/osmocom/core/logging.h b/include/osmocom/core/logging.h
index ad775b9bc..cc3919b66 100644
--- a/include/osmocom/core/logging.h
+++ b/include/osmocom/core/logging.h
@@ -92,7 +92,7 @@ void logp(int subsys, const char *file, int line, int cont, const char *format,
 #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 */
diff --git a/src/logging.c b/src/logging.c
index 1516a7d8d..30d0b8da1 100644
--- a/src/logging.c
+++ b/src/logging.c
@@ -123,6 +123,11 @@ static const struct log_info_cat internal_cat[OSMO_NUM_DLIB] = {
 		.description = "Statistics messages and logging",
 		.enabled = 1, .loglevel = LOGL_NOTICE,
 	},
+	[INT2IDX(DLGSUP)] = {
+		.name = "DLGSUP",
+		.description = "Generic Subscriber Update Protocol",
+		.enabled = 1, .loglevel = LOGL_NOTICE,
+	},
 };
 
 /*! \brief descriptive string for each log level */
diff --git a/tests/gsup/gsup_test.c b/tests/gsup/gsup_test.c
index 2b0a29389..7af16b76c 100644
--- a/tests/gsup/gsup_test.c
+++ b/tests/gsup/gsup_test.c
@@ -241,11 +241,6 @@ static void test_gsup_messages_dec_enc(void)
 }
 
 const struct log_info_cat default_categories[] = {
-	[DLGSUP] = {
-		.name = "DLGSUP",
-		.description = "Generic Subscriber Update Protocol",
-		.enabled = 0, .loglevel = LOGL_DEBUG,
-	},
 };
 
 static struct log_info info = {