diff --git a/src/protocol_edge.c b/src/protocol_edge.c
index 00511dfa..0ee48235 100644
--- a/src/protocol_edge.c
+++ b/src/protocol_edge.c
@@ -181,6 +181,10 @@ bool add_edge_h(connection_t *c, const char *request) {
 					forward_request(c, request);
 
 				return true;
+			} else {
+				logger(DEBUG_PROTOCOL, LOG_WARNING, "%s:%d %s -> %s - got edge we know from older version? (%d.%d)",
+							 __FUNCTION__, __LINE__, e->from->name, e->to->name, c->protocol_major, c->protocol_minor);
+				return true;
 			}
 		} else {