diff --git a/include/curl/multi.h b/include/curl/multi.h
index 27d44dca9990ca9332e938d52c4294775ee251c7..f79dbabb9afc4b3d37c20570b03dcd94eceda565 100644
--- a/include/curl/multi.h
+++ b/include/curl/multi.h
@@ -55,7 +55,7 @@
 /* HP-UX systems version 9, 10 and 11 lack sys/select.h and so does oldish
    libc5-based Linux systems. Only include it on system that are known to
    require it! */
-#if defined(_AIX) || defined(NETWARE)
+#if defined(_AIX) || defined(NETWARE) || defined(__NetBSD__)
 #include <sys/select.h>
 #endif