diff --git a/modules/b2b_logic/logic.c b/modules/b2b_logic/logic.c
index cc03a5148ab..c7d0ef79bae 100644
--- a/modules/b2b_logic/logic.c
+++ b/modules/b2b_logic/logic.c
@@ -2896,7 +2896,7 @@ str* b2b_process_scenario_init(struct sip_msg* msg, b2bl_cback_f cbf,
 		goto error;
 	}
 
-	if (!e1 && !e2) {
+	if (!e1 || !e2) {
 		LM_ERR("Two bridge entities required!\n");
 		goto error;
 	}