diff --git a/service-base/src/main/java/org/eclipse/hono/service/http/AbstractHttpEndpoint.java b/service-base/src/main/java/org/eclipse/hono/service/http/AbstractHttpEndpoint.java
index 50809a19b7..93d5c4d031 100644
--- a/service-base/src/main/java/org/eclipse/hono/service/http/AbstractHttpEndpoint.java
+++ b/service-base/src/main/java/org/eclipse/hono/service/http/AbstractHttpEndpoint.java
@@ -85,7 +85,7 @@ public abstract class AbstractHttpEndpoint<T extends ServiceConfigProperties> ex
 
     /**
      * A function that tries to parse a string into an Optional boolean.
-     *  The input string should be a valid boolean value as string (e.g. 'true', 'false' etc..).
+     * The input string should be a valid boolean value as string (e.g. 'true', 'false' etc..).
      * If string is null or empty, function returns Optional.empty() else an Optional object of boolean type.
      */
     protected static final Function<String, Optional<Boolean>> CONVERTER_BOOLEAN =  s -> {