diff --git a/spejsiot/SpejsNode.cpp b/spejsiot/SpejsNode.cpp
index 947f069..2df30a8 100644
--- a/spejsiot/SpejsNode.cpp
+++ b/spejsiot/SpejsNode.cpp
@@ -156,7 +156,7 @@ void SpejsNode::onConnected() {
     notify("$mac", WifiStation.getMAC());
     notify("$fw/name", "spejsiot");
     notify("$fw/version", BUILD_ID);
-    notify("$fw/slot", String(currentSlot));
+    notify("$implementation/slot", String(currentSlot));
 
     // HTTP initialization
     http.listen(80);
diff --git a/spejsiot/endpoints/ImplementationEndpoint.h b/spejsiot/endpoints/ImplementationEndpoint.h
index 28df0e1..55de752 100644
--- a/spejsiot/endpoints/ImplementationEndpoint.h
+++ b/spejsiot/endpoints/ImplementationEndpoint.h
@@ -9,7 +9,8 @@ protected:
     rBootHttpUpdate* otaUpdater = 0;
 
 public:
-    ImplementationEndpoint() : Endpoint("$implementation") {}
+    // Use empty endpoint type to just keep it unpublished
+    ImplementationEndpoint() : Endpoint("") {}
 
     EndpointResult onValue(String property, String value);
     void otaUpdateCallback(rBootHttpUpdate& updater, bool result);