diff --git a/src/process.c b/src/process.c
index d8f9c654c8a..2c9ca3d9149 100644
--- a/src/process.c
+++ b/src/process.c
@@ -6074,7 +6074,7 @@ init_process ()
 #ifdef HAVE_GETSOCKNAME
    ADD_SUBFEATURE (QCservice, Qt);
 #endif
-#ifndef TERM
+#if !defined(TERM) && (defined(O_NONBLOCK) || defined(O_NDELAY))
    ADD_SUBFEATURE (QCserver, Qt);
 #endif
 #ifdef SO_BINDTODEVICE