diff --git a/src/main/java/de/ph87/data/topic/TopicReceiver.java b/src/main/java/de/ph87/data/topic/TopicReceiver.java
index 476c250..887b1cf 100644
--- a/src/main/java/de/ph87/data/topic/TopicReceiver.java
+++ b/src/main/java/de/ph87/data/topic/TopicReceiver.java
@@ -122,7 +122,11 @@ public class TopicReceiver {
   }
 
   private static Optional<Double> queryValue(final Object valueRaw) {
-    if (valueRaw instanceof final Number n) {
+    if (valueRaw instanceof final Double n) {
+      return Optional.of(n);
+    } else if (valueRaw instanceof final Integer n) {
+      return Optional.of((double) n);
+    } else if (valueRaw instanceof final Long n) {
       return Optional.of((double) n);
     } else if (valueRaw instanceof final Boolean b) {
       return Optional.of(b ? 1.0 : 0.0);