diff --git a/Examples/xx-messenger/Sources/AppCore/SharedUI/Data+hexString.swift b/Examples/xx-messenger/Sources/AppCore/SharedUI/Data+hexString.swift
index 05755e40e15284435c81514b5edf08eb49814ef8..e8010b95c6fbeea66049228f1129f929559bdf86 100644
--- a/Examples/xx-messenger/Sources/AppCore/SharedUI/Data+hexString.swift
+++ b/Examples/xx-messenger/Sources/AppCore/SharedUI/Data+hexString.swift
@@ -1,7 +1,7 @@
 import Foundation
 
 extension Data {
-  public var hexString: String {
-    map { String(format: "%02hhx ", $0) }.joined()
+  public func hexString(bytesSeparator: String = " ") -> String {
+    map { String(format: "%02hhx\(bytesSeparator)", $0) }.joined()
   }
 }
diff --git a/Examples/xx-messenger/Sources/ContactFeature/ContactView.swift b/Examples/xx-messenger/Sources/ContactFeature/ContactView.swift
index 5bfe475b44aca55fffbbcb787135788422dc1a87..daa84903edacd947fb7173c3196e8ea7f5c1cf0d 100644
--- a/Examples/xx-messenger/Sources/ContactFeature/ContactView.swift
+++ b/Examples/xx-messenger/Sources/ContactFeature/ContactView.swift
@@ -111,7 +111,7 @@ public struct ContactView: View {
 
         if let dbContact = viewStore.dbContact {
           Section {
-            Label(dbContact.id.hexString, systemImage: "number")
+            Label(dbContact.id.hexString(), systemImage: "number")
               .font(.footnote.monospaced())
             Label(dbContact.username ?? "", systemImage: "person")
             Label(dbContact.email ?? "", systemImage: "envelope")
diff --git a/Examples/xx-messenger/Sources/ContactLookupFeature/ContactLookupView.swift b/Examples/xx-messenger/Sources/ContactLookupFeature/ContactLookupView.swift
index d4a759d58bdb4986d13764a553b3bf7a525de58d..6ce83eda6ba5dacfcf15c2fca4e8c202087ef42d 100644
--- a/Examples/xx-messenger/Sources/ContactLookupFeature/ContactLookupView.swift
+++ b/Examples/xx-messenger/Sources/ContactLookupFeature/ContactLookupView.swift
@@ -25,7 +25,7 @@ public struct ContactLookupView: View {
     WithViewStore(store, observe: ViewState.init) { viewStore in
       Form {
         Section {
-          Label(viewStore.id.hexString, systemImage: "number")
+          Label(viewStore.id.hexString(), systemImage: "number")
             .font(.footnote.monospaced())
 
           Button {
diff --git a/Examples/xx-messenger/Sources/MyContactFeature/MyContactView.swift b/Examples/xx-messenger/Sources/MyContactFeature/MyContactView.swift
index eca55d6293f8caed3c695b8bca1e81c3b568999d..d32a6f68848e89ad7eeb4a9bf5f25b543d379f40 100644
--- a/Examples/xx-messenger/Sources/MyContactFeature/MyContactView.swift
+++ b/Examples/xx-messenger/Sources/MyContactFeature/MyContactView.swift
@@ -51,7 +51,7 @@ public struct MyContactView: View {
     WithViewStore(store, observe: ViewState.init) { viewStore in
       Form {
         Section {
-          Text(viewStore.contact?.id.hexString ?? "")
+          Text(viewStore.contact?.id.hexString() ?? "")
             .font(.footnote.monospaced())
             .textSelection(.enabled)
         } header: {