diff --git a/bundles/org.openhab.binding.dwdunwetter/src/main/java/org/openhab/binding/dwdunwetter/internal/handler/DwdUnwetterHandler.java b/bundles/org.openhab.binding.dwdunwetter/src/main/java/org/openhab/binding/dwdunwetter/internal/handler/DwdUnwetterHandler.java
index d271fc8c3..b85448c8c 100644
--- a/bundles/org.openhab.binding.dwdunwetter/src/main/java/org/openhab/binding/dwdunwetter/internal/handler/DwdUnwetterHandler.java
+++ b/bundles/org.openhab.binding.dwdunwetter/src/main/java/org/openhab/binding/dwdunwetter/internal/handler/DwdUnwetterHandler.java
@@ -169,7 +169,7 @@ public class DwdUnwetterHandler extends BaseThingHandler {
     }
 
     private ChannelUID getChannelUuid(String typeId, int warningNumber) {
-        return new ChannelUID(getThing().getUID(), typeId + (warningNumber + 1));
+        return new ChannelUID(getThing().getUID(), typeId + warningNumber);
     }
 
     private ChannelUID getChannelUuid(String typeId) {
@@ -193,7 +193,7 @@ public class DwdUnwetterHandler extends BaseThingHandler {
     }
 
     private String getChannelLabelSuffix(int warningNumber) {
-        return "(" + (warningNumber + 1) + ")";
+        return "(" + warningNumber + ")";
     }
 
     /**