diff --git a/go.mod b/go.mod
index d994549..2c4bbe7 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module cmutton
 go 1.26rc3
 
 require (
-	github.com/rwinkhart/libmutton v0.4.3-0.20260208045259-4602c295181e
+	github.com/rwinkhart/libmutton v0.4.3-0.20260208050303-cdb5bd562142
 	github.com/rwinkhart/rcw v0.2.5
 )
 
diff --git a/go.sum b/go.sum
index ce7174d..e602638 100644
--- a/go.sum
+++ b/go.sum
@@ -16,8 +16,8 @@ github.com/pquerna/otp v1.5.0 h1:NMMR+WrmaqXU4EzdGJEE1aUUI0AMRzsp96fFFWNPwxs=
 github.com/pquerna/otp v1.5.0/go.mod h1:dkJfzwRKNiegxyNb54X/3fLwhCynbMspSyWKnvi1AEg=
 github.com/rwinkhart/go-boilerplate v0.2.3-0.20260208035402-e1bb0012a781 h1:kMAM0fkWGPa8WK7A4a9rMX2oD2Lv198zJoD9LCUAzOA=
 github.com/rwinkhart/go-boilerplate v0.2.3-0.20260208035402-e1bb0012a781/go.mod h1:QcUlr4SMgONRMKD965m8oTuCa6ZJVAc17w27Qopyr+s=
-github.com/rwinkhart/libmutton v0.4.3-0.20260208045259-4602c295181e h1:RFiKcMEXqHbgK4g4d1WOHMN+DmHeygIjKDHKH4Su55w=
-github.com/rwinkhart/libmutton v0.4.3-0.20260208045259-4602c295181e/go.mod h1:G9EvjsHvTyOvUOs1VZ8aRKRpRRgzrrdZSCGheL/t72I=
+github.com/rwinkhart/libmutton v0.4.3-0.20260208050303-cdb5bd562142 h1:EmrGJnprEageU5YrPjfgq4wkwyfKEkgTp2IJtRkhjBE=
+github.com/rwinkhart/libmutton v0.4.3-0.20260208050303-cdb5bd562142/go.mod h1:G9EvjsHvTyOvUOs1VZ8aRKRpRRgzrrdZSCGheL/t72I=
 github.com/rwinkhart/peercred-mini v0.1.2 h1:4cGWDbv0whvLeVvbUdx84V/9p+2fS+DEXgrA1KxlRFo=
 github.com/rwinkhart/peercred-mini v0.1.2/go.mod h1:LLHG7YshHEpbpJJP+Il9nx2dnGj5O3VGE32rWmflj0c=
 github.com/rwinkhart/rcw v0.2.5 h1:3GJeii9sDZsZNL+HRkfHrnbgxnaB8a9kejiMIfPXnpE=
diff --git a/privkey.go b/privkey_ios.go
similarity index 67%
rename from privkey.go
rename to privkey_ios.go
index 2e0c79b..5278ca8 100644
--- a/privkey.go
+++ b/privkey_ios.go
@@ -1,3 +1,5 @@
+//go:build ios
+
 package main
 
 // #include <stdlib.h>
@@ -18,16 +20,7 @@ import (
 //export SetPrivKeyDataAndEraseFreeInput
 func SetPrivKeyDataAndEraseFreeInput(privKeyData C.PascalString) {
 	privKeyDataPtr := unsafe.Pointer(privKeyData.data)
-	privkey.SetBytes(C.GoBytes(privKeyDataPtr, privKeyData.len))
+	privkey.LocalBytes = C.GoBytes(privKeyDataPtr, privKeyData.len)
 	securePtrOverwriteAndFree(privKeyDataPtr, C.size_t(privKeyData.len))
 	FreePascalString(privKeyData)
 }
-
-// EraseGoPrivKey is meant to be called on iOS after
-// any server connections to ensure the cached SSH private key
-// set by SetPrivKeyDataAndEraseFreeInput is securely erased.
-//
-//export EraseGoPrivKey
-func EraseGoPrivKey() {
-	privkey.Erase()
-}