diff --git a/deps/cares/include/ares.h b/deps/cares/include/ares.h
index cd94d4fc62..c23ea3e2e0 100644
--- a/deps/cares/include/ares.h
+++ b/deps/cares/include/ares.h
@@ -38,7 +38,7 @@
    require it! */
 #if defined(_AIX) || defined(__NOVELL_LIBC__) || defined(__NetBSD__) || \
     defined(__minix) || defined(__SYMBIAN32__) || defined(__INTEGRITY) || \
-    defined(ANDROID) || defined(__ANDROID__)
+    defined(ANDROID) || defined(__ANDROID__) || defined(__OpenBSD__)
 #include <sys/select.h>
 #endif
 #if (defined(NETWARE) && !defined(__NOVELL_LIBC__))