diff --git a/src/http/ngx_http_spdy.h b/src/http/ngx_http_spdy.h
index 6301406..c47243f 100644
--- a/src/http/ngx_http_spdy.h
+++ b/src/http/ngx_http_spdy.h
@@ -173,9 +173,9 @@
 {
     ngx_http_spdy_out_frame_t  **out;
 
-    for (out = &sc->last_out; *out && !(*out)->blocked; out = &(*out)->next)
+    for (out = &sc->last_out; *out; out = &(*out)->next)
     {
-        if (frame->priority >= (*out)->priority) {
+        if ((*out)->blocked) {
             break;
         }
     }