diff --git a/openbsc/src/libcommon/debug.c b/openbsc/src/libcommon/debug.c
index fad5e27..d082492 100644
--- a/openbsc/src/libcommon/debug.c
+++ b/openbsc/src/libcommon/debug.c
@@ -161,6 +161,11 @@
 		.description = "Control interface",
 		.enabled = 1, .loglevel = LOGL_NOTICE,
 	},
+	[DSMPP] = {
+		.name = "DSMPP",
+		.description = "SMPP interface for external SMS apps",
+		.enabled = 1, .loglevel = LOGL_DEBUG,
+	},
 };
 
 enum log_filter {