diff --git a/src/add-ons/mail_daemon/outbound_protocols/smtp/smtp.cpp b/src/add-ons/mail_daemon/outbound_protocols/smtp/smtp.cpp
index c44dea2b8b..f3341aefa7 100644
--- a/src/add-ons/mail_daemon/outbound_protocols/smtp/smtp.cpp
+++ b/src/add-ons/mail_daemon/outbound_protocols/smtp/smtp.cpp
@@ -964,7 +964,7 @@ SMTPProtocol::ReceiveResponse(BString &out)
             result = 1;
         else
 #endif
-            result = select(32, &fds, NULL, NULL, &tv);
+            result = select(1, &fds, NULL, NULL, &tv);
 	if (result < 0)
 		return errno;