diff --git a/include/mega/posix/megafs.h b/include/mega/posix/megafs.h
index ac9d7e8a46..240aef6872 100644
--- a/include/mega/posix/megafs.h
+++ b/include/mega/posix/megafs.h
@@ -32,7 +32,7 @@
 #define O_DIRECT 0
 #include <sys/param.h>
 #include <sys/mount.h>
-#elif defined(__FreeBSD__)
+#elif defined(__FreeBSD__) || defined(__OpenBSD__)
 #include <sys/mount.h>
 #else
 #include <sys/vfs.h>
diff --git a/include/mega/posix/megasys.h b/include/mega/posix/megasys.h
index 27ef954558..97f8bbc1f7 100644
--- a/include/mega/posix/megasys.h
+++ b/include/mega/posix/megasys.h
@@ -95,7 +95,7 @@
 #include <arpa/inet.h>
 #include <termios.h>
 
-#if defined(__linux__)
+#if defined(__linux__) || defined(__OpenBSD__)
 #include <endian.h>
 #endif
 
diff --git a/src/http.cpp b/src/http.cpp
index 8e035f0ba0..8f2c799f3a 100644
--- a/src/http.cpp
+++ b/src/http.cpp
@@ -268,9 +268,11 @@ void HttpIO::getMEGADNSservers(string *dnsservers, bool getfromnetwork)
 
         struct addrinfo hints = {};
         hints.ai_family = AF_UNSPEC;
-
-#ifndef __MINGW32__
-        hints.ai_flags = AI_V4MAPPED | AI_ADDRCONFIG;
+#ifdef AI_V4MAPPED
+        hints.ai_flags |= AI_V4MAPPED;
+#endif
+#ifdef AI_ADDRCONFIG
+        hints.ai_flags |= AI_ADDRCONFIG;
 #endif
 
         if (!getaddrinfo("ns.mega.co.nz", NULL, &hints, &aiList))