diff --git a/go.mod b/go.mod
index 3b0af5a..7a96c97 100644
--- a/go.mod
+++ b/go.mod
@@ -1,7 +1,7 @@
 module github.com/yggdrasil-network/yggdrasil-go
 
 require (
-	github.com/Arceliar/phony v0.0.0-20190831050304-94a6d3da9ba4
+	github.com/Arceliar/phony v0.0.0-20190831212216-7018ff05d824
 	github.com/gologme/log v0.0.0-20181207131047-4e5d8ccb38e8
 	github.com/hashicorp/go-syslog v1.0.0
 	github.com/hjson/hjson-go v0.0.0-20181010104306-a25ecf6bd222
diff --git a/go.sum b/go.sum
index df7ff63..b0b891e 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,5 @@
-github.com/Arceliar/phony v0.0.0-20190831050304-94a6d3da9ba4 h1:OePImnPRBqS6JiHuVVq4Rfvt2yyhqMpWCB63PrwGrJE=
-github.com/Arceliar/phony v0.0.0-20190831050304-94a6d3da9ba4/go.mod h1:6Lkn+/zJilRMsKmbmG1RPoamiArC6HS73xbwRyp3UyI=
+github.com/Arceliar/phony v0.0.0-20190831212216-7018ff05d824 h1:JY7qh6yR87H8xgPUTYrrqa5cajb7zynKsbAdjhsVkyU=
+github.com/Arceliar/phony v0.0.0-20190831212216-7018ff05d824/go.mod h1:6Lkn+/zJilRMsKmbmG1RPoamiArC6HS73xbwRyp3UyI=
 github.com/gologme/log v0.0.0-20181207131047-4e5d8ccb38e8 h1:WD8iJ37bRNwvETMfVTusVSAi0WdXTpfNVGY2aHycNKY=
 github.com/gologme/log v0.0.0-20181207131047-4e5d8ccb38e8/go.mod h1:gq31gQ8wEHkR+WekdWsqDuf8pXTUZA9BnnzTuPz1Y9U=
 github.com/hashicorp/go-syslog v1.0.0 h1:KaodqZuhUoZereWVIYmpUgZysurB1kBLX2j0MwMrUAE=
diff --git a/src/util/bytes_mobile.go b/src/util/bytes_mobile.go
new file mode 100644
index 0000000..ceab763
--- /dev/null
+++ b/src/util/bytes_mobile.go
@@ -0,0 +1,13 @@
+//+build mobile
+
+package util
+
+// On mobile, just return a nil slice.
+func GetBytes() []byte {
+	return nil
+}
+
+// On mobile, don't do anything.
+func PutBytes(bs []byte) {
+	return
+}
diff --git a/src/util/bytes_other.go b/src/util/bytes_other.go
new file mode 100644
index 0000000..41b8bec
--- /dev/null
+++ b/src/util/bytes_other.go
@@ -0,0 +1,18 @@
+//+build !mobile
+
+package util
+
+import "sync"
+
+// This is used to buffer recently used slices of bytes, to prevent allocations in the hot loops.
+var byteStore = sync.Pool{New: func() interface{} { return []byte(nil) }}
+
+// Gets an empty slice from the byte store.
+func GetBytes() []byte {
+	return byteStore.Get().([]byte)[:0]
+}
+
+// Puts a slice in the store.
+func PutBytes(bs []byte) {
+	byteStore.Put(bs)
+}
diff --git a/src/util/util.go b/src/util/util.go
index a588a35..9725012 100644
--- a/src/util/util.go
+++ b/src/util/util.go
@@ -6,7 +6,6 @@ import (
 	"runtime"
 	"strconv"
 	"strings"
-	"sync"
 	"time"
 )
 
@@ -25,19 +24,6 @@ func UnlockThread() {
 	runtime.UnlockOSThread()
 }
 
-// This is used to buffer recently used slices of bytes, to prevent allocations in the hot loops.
-var byteStore = sync.Pool{New: func() interface{} { return []byte(nil) }}
-
-// Gets an empty slice from the byte store.
-func GetBytes() []byte {
-	return byteStore.Get().([]byte)[:0]
-}
-
-// Puts a slice in the store.
-func PutBytes(bs []byte) {
-	byteStore.Put(bs)
-}
-
 // Gets a slice of the appropriate length, reusing existing slice capacity when possible
 func ResizeBytes(bs []byte, length int) []byte {
 	if cap(bs) >= length {