diff --git a/core/processor/src/main/java/io/quarkus/annotation/processor/generate_doc/ConfigDocItemFinder.java b/core/processor/src/main/java/io/quarkus/annotation/processor/generate_doc/ConfigDocItemFinder.java
index a79513b5c46bd..5d6664e5463b6 100644
--- a/core/processor/src/main/java/io/quarkus/annotation/processor/generate_doc/ConfigDocItemFinder.java
+++ b/core/processor/src/main/java/io/quarkus/annotation/processor/generate_doc/ConfigDocItemFinder.java
@@ -396,6 +396,19 @@ private List<ConfigDocItem> recursivelyFindConfigItems(Element element, String r
                 configDocKey.setJavaDocSiteLink(getJavaDocSiteLink(type));
                 ConfigDocItem configDocItem = new ConfigDocItem();
                 configDocItem.setConfigDocKey(configDocKey);
+
+                // If there is already a config item with the same key it comes from a super type, and we need to override it
+                ConfigDocItem parent = null;
+                for (ConfigDocItem docItem : configDocItems) {
+                    if (docItem.getConfigDocKey().getKey().equals(configDocKey.getKey())) {
+                        parent = docItem;
+                        break;
+                    }
+                }
+                // We may want to merge the metadata, but let's keep this simple for now
+                if (parent != null) {
+                    configDocItems.remove(parent);
+                }
                 configDocItems.add(configDocItem);
             }
         }
diff --git a/extensions/opentelemetry/runtime/src/main/java/io/quarkus/opentelemetry/runtime/config/runtime/exporter/OtlpExporterConfig.java b/extensions/opentelemetry/runtime/src/main/java/io/quarkus/opentelemetry/runtime/config/runtime/exporter/OtlpExporterConfig.java
index 14b8e93ea5013..d894c3e2edf52 100644
--- a/extensions/opentelemetry/runtime/src/main/java/io/quarkus/opentelemetry/runtime/config/runtime/exporter/OtlpExporterConfig.java
+++ b/extensions/opentelemetry/runtime/src/main/java/io/quarkus/opentelemetry/runtime/config/runtime/exporter/OtlpExporterConfig.java
@@ -5,11 +5,9 @@
 import java.util.Optional;
 import java.util.OptionalInt;
 
-import io.quarkus.runtime.annotations.ConfigGroup;
 import io.smallrye.config.WithDefault;
 import io.smallrye.config.WithName;
 
-@ConfigGroup
 public interface OtlpExporterConfig {
     String DEFAULT_GRPC_BASE_URI = "http://localhost:4317/";
     String DEFAULT_HTTP_BASE_URI = "http://localhost:4318/";