diff --git a/include/osmo-bts/logging.h b/include/osmo-bts/logging.h
index e63b0cfa3..9252cb8f4 100644
--- a/include/osmo-bts/logging.h
+++ b/include/osmo-bts/logging.h
@@ -13,6 +13,7 @@ enum {
 	DPAG,
 	DL1C,
 	DL1P,
+	DDSP,
 	DABIS,
 	DRTP,
 	DSUM,
diff --git a/src/common/logging.c b/src/common/logging.c
index 9116ec7b1..2e9520892 100644
--- a/src/common/logging.c
+++ b/src/common/logging.c
@@ -78,6 +78,12 @@ static struct log_info_cat bts_log_info_cat[] = {
 		.loglevel = LOGL_DEBUG,
 		.enabled = 0,
 	},
+	[DDSP] = {
+		.name = "DDSP",
+		.description = "DSP Trace Messages",
+		.loglevel = LOGL_DEBUG,
+		.enabled = 1,
+	},
 	[DABIS] = {
 		.name = "DABIS",
 		.description = "A-bis Intput Subsystem",