diff --git a/docker-java/src/main/java/com/github/dockerjava/core/DockerClientBuilder.java b/docker-java/src/main/java/com/github/dockerjava/core/DockerClientBuilder.java
index a3e4c3909..8100f285e 100644
--- a/docker-java/src/main/java/com/github/dockerjava/core/DockerClientBuilder.java
+++ b/docker-java/src/main/java/com/github/dockerjava/core/DockerClientBuilder.java
@@ -94,7 +94,7 @@ public DockerClient build() {
         } else {
             Logger log = LoggerFactory.getLogger(DockerClientBuilder.class);
             log.warn(
-                "'dockerHttpClient' should be set." +
+                "'dockerHttpClient' should be set. " +
                     "Falling back to Jersey, will be an error in future releases."
             );