diff --git a/connection.go b/connection.go
index 2f80cf88..3310a64a 100644
--- a/connection.go
+++ b/connection.go
@@ -204,6 +204,11 @@ func (c *Connection) Init() error {
 		initOp.Flags |= fusekernel.InitAtomicTrunc
 	}
 
+	outArgs := uint64(0)
+	outArgs |= fusekernel.InitDirectIOAllowMMAP
+	initOp.Flags |= fusekernel.InitExt
+	initOp.Flags2 |= uint32(outArgs >> 32)
+
 	return c.Reply(ctx, nil)
 }
 
diff --git a/conversions.go b/conversions.go
index 6c2ea89f..224f0528 100644
--- a/conversions.go
+++ b/conversions.go
@@ -996,6 +996,7 @@ func (c *Connection) kernelResponseForOp(
 		out.CongestionThreshold = 9
 		out.MaxWrite = o.MaxWrite
 		out.TimeGran = 1
+		out.Flags2 = o.Flags2
 		out.MaxPages = o.MaxPages
 
 	default:
diff --git a/internal/fusekernel/fuse_kernel.go b/internal/fusekernel/fuse_kernel.go
index 8e908152..c675d4c6 100644
--- a/internal/fusekernel/fuse_kernel.go
+++ b/internal/fusekernel/fuse_kernel.go
@@ -272,12 +272,15 @@ const (
 	InitMaxPages         InitFlags = 1 << 22
 	InitCacheSymlinks    InitFlags = 1 << 23
 	InitNoOpendirSupport InitFlags = 1 << 24
+	InitExt InitFlags = 1 << 30
 
 	InitCaseSensitive InitFlags = 1 << 29 // OS X only
 	InitVolRename     InitFlags = 1 << 30 // OS X only
 	InitXtimes        InitFlags = 1 << 31 // OS X only
 )
 
+const InitDirectIOAllowMMAP uint64 = 1 << 36
+
 type flagName struct {
 	bit  uint32
 	name string
@@ -305,6 +308,7 @@ var initFlagNames = []flagName{
 	{uint32(InitNoOpenSupport), "InitNoOpenSupport"},
 	{uint32(InitCacheSymlinks), "InitCacheSymlinks"},
 	{uint32(InitNoOpendirSupport), "InitNoOpendirSupport"},
+	{uint32(InitExt), "InitExt"},
 
 	{uint32(InitCaseSensitive), "InitCaseSensitive"},
 	{uint32(InitVolRename), "InitVolRename"},
@@ -748,7 +752,9 @@ type InitOut struct {
 	TimeGran            uint32
 	MaxPages            uint16
 	MapAlignment        uint16
-	Unused              [8]uint32
+	Flags2 				uint32
+	
+	Unused              [7]uint32
 }
 
 type InterruptIn struct {
diff --git a/ops.go b/ops.go
index fe21a64f..52b039f2 100644
--- a/ops.go
+++ b/ops.go
@@ -45,4 +45,5 @@ type initOp struct {
 	MaxBackground uint16
 	MaxWrite      uint32
 	MaxPages      uint16
+	Flags2        uint32
 }