diff --git a/apps/er-coap-07/er-coap-07-observing.c b/apps/er-coap-07/er-coap-07-observing.c
index f3dc7425d..4da0f5f67 100644
--- a/apps/er-coap-07/er-coap-07-observing.c
+++ b/apps/er-coap-07/er-coap-07-observing.c
@@ -191,7 +191,7 @@ coap_observe_handler(resource_t *resource, void *request, void *response)
 
   static char content[26];
 
-  if (coap_res && coap_res->code<128) /* response without error code */
+  if (coap_req->code==COAP_GET && coap_res && coap_res->code<128) /* GET request and response without error code */
   {
     if (IS_OPTION(coap_req, COAP_OPTION_OBSERVE))
     {