diff --git a/src/Services/Device.vala b/src/Services/Device.vala
index bbcc0f3d..0b863bb2 100644
--- a/src/Services/Device.vala
+++ b/src/Services/Device.vala
@@ -25,18 +25,18 @@ public interface BluetoothIndicator.Services.Device : Object {
     public abstract void pair () throws Error;
 
     public abstract string[] UUIDs { owned get; }
-    public abstract bool blocked { owned get; set; }
-    public abstract bool connected { owned get; }
-    public abstract bool legacy_pairing { owned get; }
-    public abstract bool paired { owned get; }
-    public abstract bool trusted { owned get; set; }
-    public abstract int16 RSSI { owned get; }
+    public abstract bool blocked { get; set; }
+    public abstract bool connected { get; }
+    public abstract bool legacy_pairing { get; }
+    public abstract bool paired { get; }
+    public abstract bool trusted { get; set; }
+    public abstract int16 RSSI { get; }
     public abstract ObjectPath adapter { owned get; }
     public abstract string address { owned get; }
     public abstract string alias { owned get; set; }
     public abstract string icon { owned get; }
     public abstract string modalias { owned get; }
     public abstract string name { owned get; }
-    public abstract uint16 appearance { owned get; }
-    public abstract uint32 @class { owned get; }
+    public abstract uint16 appearance { get; }
+    public abstract uint32 @class { get; }
 }
diff --git a/src/Services/Session.vala b/src/Services/Session.vala
index 83737e50..60cf8f17 100644
--- a/src/Services/Session.vala
+++ b/src/Services/Session.vala
@@ -20,7 +20,7 @@ public interface BluetoothIndicator.Services.Obex.Session : Object {
     public abstract string get_capabilities () throws GLib.Error;
     public abstract string source { owned get; }
     public abstract string destination { owned get; }
-    public abstract uchar channel { owned get; }
+    public abstract uchar channel { get; }
     public abstract string target { owned get; }
     public abstract string root { owned get; }
 }
diff --git a/src/Services/Transfer.vala b/src/Services/Transfer.vala
index e00b6ac8..53d49af8 100644
--- a/src/Services/Transfer.vala
+++ b/src/Services/Transfer.vala
@@ -22,8 +22,8 @@ public interface BluetoothIndicator.Services.Obex.Transfer : Object {
     public abstract ObjectPath session { owned get; }
     public abstract string name { owned get; }
     public abstract string Type { owned get; }
-    public abstract uint64 time { owned get; }
-    public abstract uint64 size { owned get; }
-    public abstract uint64 transferred { owned get; }
+    public abstract uint64 time { get; }
+    public abstract uint64 size { get; }
+    public abstract uint64 transferred { get; }
     public abstract string filename { owned get; }
 }