diff --git a/extensions/resteasy-reactive/rest-client-reactive/runtime/src/main/java/io/quarkus/rest/client/reactive/runtime/devui/RestClientsContainer.java b/extensions/resteasy-reactive/rest-client-reactive/runtime/src/main/java/io/quarkus/rest/client/reactive/runtime/devui/RestClientsContainer.java
index 65c38f3b4762e..f2d95097be728 100644
--- a/extensions/resteasy-reactive/rest-client-reactive/runtime/src/main/java/io/quarkus/rest/client/reactive/runtime/devui/RestClientsContainer.java
+++ b/extensions/resteasy-reactive/rest-client-reactive/runtime/src/main/java/io/quarkus/rest/client/reactive/runtime/devui/RestClientsContainer.java
@@ -80,7 +80,7 @@ public static class RestClientInfo {
         public RestClientInfo(String interfaceClass, boolean isBean, String configKey) {
             this.interfaceClass = interfaceClass;
             this.isBean = isBean;
-            this.configKey = configKey == null ? "" : String.format("quarkus.rest.client.%s", configKey);
+            this.configKey = configKey == null ? "" : String.format("quarkus.rest-client.%s", configKey);
         }
     }