diff --git a/libnymea/interfaces/smartmeterconsumer.json b/libnymea/interfaces/smartmeterconsumer.json
index d3316399..69456283 100644
--- a/libnymea/interfaces/smartmeterconsumer.json
+++ b/libnymea/interfaces/smartmeterconsumer.json
@@ -12,7 +12,6 @@
             "name": "currentPower",
             "type": "double",
             "unit": "Watt",
-            "optional": true,
             "logged": true
         }
     ]
diff --git a/libnymea/interfaces/smartmeterproducer.json b/libnymea/interfaces/smartmeterproducer.json
index 8e374a97..442542ba 100644
--- a/libnymea/interfaces/smartmeterproducer.json
+++ b/libnymea/interfaces/smartmeterproducer.json
@@ -12,7 +12,6 @@
             "name": "currentPower",
             "type": "double",
             "unit": "Watt",
-            "optional": true,
             "logged": true
         }
     ]