diff --git a/include/osmocom/core/logging.h b/include/osmocom/core/logging.h
index e058a57..86a6977 100644
--- a/include/osmocom/core/logging.h
+++ b/include/osmocom/core/logging.h
@@ -104,7 +104,8 @@
 #define DLSCCP		-14	/*!< Osmocom SCCP */
 #define DLSUA		-15	/*!< Osmocom SUA */
 #define DLM3UA		-16	/*!< Osmocom M3UA */
-#define OSMO_NUM_DLIB	16	/*!< Number of logging sub-systems in libraries */
+#define DLMGCP		-17	/*!< Osmocom MGCP */
+#define OSMO_NUM_DLIB	17	/*!< Number of logging sub-systems in libraries */
 
 /*! Configuration of single log category / sub-system */
 struct log_category {
diff --git a/src/logging.c b/src/logging.c
index 2fb06ba..2e913e5 100644
--- a/src/logging.c
+++ b/src/logging.c
@@ -161,6 +161,11 @@
 		.description = "libosmo-sigtran MTP3 User Adaptation",
 		.enabled = 1, .loglevel = LOGL_NOTICE,
 	},
+	[INT2IDX(DLMGCP)] = {
+		.name = "DLMGCP",
+		.description = "libosmo-mgcp Media Gateway Control Protocol",
+		.enabled = 1, .loglevel = LOGL_NOTICE,
+	},
 };
 
 /*! descriptive string for each log level */