diff --git a/src/libosmo-mgcp-client/mgcp_client.c b/src/libosmo-mgcp-client/mgcp_client.c
index c3ecc9f..0434e70 100644
--- a/src/libosmo-mgcp-client/mgcp_client.c
+++ b/src/libosmo-mgcp-client/mgcp_client.c
@@ -1392,8 +1392,10 @@
 	if (!use_sdp
 	    && (mgcp_msg->verb == MGCP_VERB_CRCX
 		|| mgcp_msg->verb == MGCP_VERB_MDCX)) {
-	        if (add_lco(msg, mgcp_msg) < 0)
+		if (add_lco(msg, mgcp_msg) < 0) {
+			LOGPMGW(mgcp, LOGL_ERROR, "Failed to add LCO, can not generate MGCP message\n");
 			return NULL;
+		}
 	}
 
 	/* Add mode */
@@ -1428,8 +1430,10 @@
 	if (use_sdp
 	    && (mgcp_msg->verb == MGCP_VERB_CRCX
 		|| mgcp_msg->verb == MGCP_VERB_MDCX)) {
-	        if (add_sdp(msg, mgcp_msg, mgcp) < 0)
+		if (add_sdp(msg, mgcp_msg, mgcp) < 0) {
+			LOGPMGW(mgcp, LOGL_ERROR, "Failed to add SDP, can not generate MGCP message\n");
 			return NULL;
+		}
 	}
 
 	if (rc != 0) {
diff --git a/tests/mgcp_client/mgcp_client_test.err b/tests/mgcp_client/mgcp_client_test.err
index 4a73f7f..d666cba 100644
--- a/tests/mgcp_client/mgcp_client_test.err
+++ b/tests/mgcp_client/mgcp_client_test.err
@@ -1,5 +1,6 @@
 DLMGCP MGW(mgw) MGCP client: using endpoint domain '@mgw'
 DLMGCP MGW(mgw) Message buffer to small, can not generate MGCP message (SDP)
+DLMGCP MGW(mgw) Failed to add SDP, can not generate MGCP message
 
 test_mgcp_client_cancel():
 DLMGCP MGW(mgw) MGCP client: using endpoint domain '@mgw'