diff --git a/go.mod b/go.mod
index 506fab5..d949202 100644
--- a/go.mod
+++ b/go.mod
@@ -6,5 +6,6 @@ require (
 	cwtch.im/cwtch v0.8.7
 	git.openprivacy.ca/openprivacy/connectivity v1.4.4
 	git.openprivacy.ca/openprivacy/log v1.0.2
-	golang.org/x/mobile v0.0.0-20210220033013-bdb1ca9a1e08 // indirect
+	golang.org/x/mobile v0.0.0-20210527171505-7e972142eb43 // indirect
+	golang.org/x/sys v0.0.0-20210608053332-aa57babbf139 // indirect
 )
diff --git a/go.sum b/go.sum
index 4b71769..eb2f312 100644
--- a/go.sum
+++ b/go.sum
@@ -70,6 +70,8 @@ golang.org/x/lint v0.0.0-20210508222113-6edffad5e616/go.mod h1:3xt1FjdF8hUf6vQPI
 golang.org/x/mobile v0.0.0-20190312151609-d3739f865fa6/go.mod h1:z+o9i4GpDbdi3rU15maQ/Ox0txvL9dWGYEHz965HBQE=
 golang.org/x/mobile v0.0.0-20210220033013-bdb1ca9a1e08 h1:h+GZ3ubjuWaQjGe8owMGcmMVCqs0xYJtRG5y2bpHaqU=
 golang.org/x/mobile v0.0.0-20210220033013-bdb1ca9a1e08/go.mod h1:skQtrUTUwhdJvXM/2KKJzY8pDgNr9I/FOMqDVRPBUS4=
+golang.org/x/mobile v0.0.0-20210527171505-7e972142eb43 h1:YfX4EDYuRrJhCu1S8M+jsXVoQj+koh5ZIwpI7bzeQ38=
+golang.org/x/mobile v0.0.0-20210527171505-7e972142eb43/go.mod h1:jFTmtFYCV0MFtXBU+J5V/+5AUeVS0ON/0WkE/KSrl6E=
 golang.org/x/mod v0.1.0/go.mod h1:0QHyrYULN0/3qlju5TqG8bIK38QM8yzMo5ekMj3DlcY=
 golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
 golang.org/x/mod v0.1.1-0.20191209134235-331c550502dd h1:ePuNC7PZ6O5BzgPn9bZayERXBdfZjUYoXEf5BTfDfh8=
@@ -95,6 +97,8 @@ golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44 h1:Bli41pIlzTzf3KEY06n+xnzK/
 golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210510120138-977fb7262007 h1:gG67DSER+11cZvqIMb8S8bt0vZtiN6xWYARwirrOSfE=
 golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20210608053332-aa57babbf139 h1:C+AwYEtBp/VQwoLntUmQ/yx3MS9vmZaKNdw5eOpoQe8=
+golang.org/x/sys v0.0.0-20210608053332-aa57babbf139/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1 h1:v+OssWQX+hTHEmOBgwxdZxK4zHq3yOs8F9J7mk0PY8E=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
diff --git a/lib.go b/lib.go
index ad8b0bb..2032a18 100644
--- a/lib.go
+++ b/lib.go
@@ -455,18 +455,19 @@ func NumMessages(profile, handle string) (n int) {
 }
 
 //export c_UpdateMessageFlags
-func c_UpdateMessageFlags(profile_ptr *C.char, profile_len C.int, handle_ptr *C.char, handle_len C.int, mIdx C.int, message_flags C.uint) {
+func c_UpdateMessageFlags(profile_ptr *C.char, profile_len C.int, handle_ptr *C.char, handle_len C.int, mIdx C.int, message_flags C.ulong) {
 	profile := C.GoStringN(profile_ptr, profile_len)
 	handle := C.GoStringN(handle_ptr, handle_len)
-	UpdateMessageFlags(profile, handle, int(mIdx), uint64(message_flags))
+	UpdateMessageFlags(profile, handle, int(mIdx), int64(message_flags))
 }
 
 
 // UpdateMessageFlags sets the messages flags on a given message for a given profile.
-func UpdateMessageFlags(profileOnion, handle string, mIdx int, flags uint64) {
+// gomobile doesn't support uint64...so here we are....
+func UpdateMessageFlags(profileOnion, handle string, mIdx int, flags int64) {
 	profile := application.GetPeer(profileOnion)
 	if profile != nil {
-		profile.UpdateMessageFlags(handle, mIdx, flags)
+		profile.UpdateMessageFlags(handle, mIdx, uint64(flags))
 	} else {
 		log.Errorf("called updatemessageflags with invalid profile onion")
 	}