diff --git a/docker-java-api/src/main/java/com/github/dockerjava/api/command/BuildImageResultCallback.java b/docker-java-api/src/main/java/com/github/dockerjava/api/command/BuildImageResultCallback.java
index 0bb0f0884..331f69509 100644
--- a/docker-java-api/src/main/java/com/github/dockerjava/api/command/BuildImageResultCallback.java
+++ b/docker-java-api/src/main/java/com/github/dockerjava/api/command/BuildImageResultCallback.java
@@ -31,7 +31,7 @@ public void onNext(BuildResponseItem item) {
         } else if (item.isErrorIndicated()) {
             this.error = item.getError();
         }
-        LOGGER.debug(item.toString());
+        LOGGER.debug("{}", item);
     }
 
     /**
diff --git a/docker-java-api/src/main/java/com/github/dockerjava/api/command/LoadImageCallback.java b/docker-java-api/src/main/java/com/github/dockerjava/api/command/LoadImageCallback.java
index 741598465..80cca18de 100644
--- a/docker-java-api/src/main/java/com/github/dockerjava/api/command/LoadImageCallback.java
+++ b/docker-java-api/src/main/java/com/github/dockerjava/api/command/LoadImageCallback.java
@@ -22,7 +22,7 @@ public void onNext(LoadResponseItem item) {
             this.error = item.getError();
         }
 
-        LOGGER.debug(item.toString());
+        LOGGER.debug("{}", item);
     }
 
     public String awaitMessage() {
diff --git a/docker-java-api/src/main/java/com/github/dockerjava/api/command/PullImageResultCallback.java b/docker-java-api/src/main/java/com/github/dockerjava/api/command/PullImageResultCallback.java
index a4e9e9f9b..5980ce3df 100644
--- a/docker-java-api/src/main/java/com/github/dockerjava/api/command/PullImageResultCallback.java
+++ b/docker-java-api/src/main/java/com/github/dockerjava/api/command/PullImageResultCallback.java
@@ -41,7 +41,7 @@ public void onNext(PullResponseItem item) {
             handleDockerClientResponse(item);
         }
 
-        LOGGER.debug(item.toString());
+        LOGGER.debug("{}", item);
     }
 
     private void checkForDockerSwarmResponse(PullResponseItem item) {
diff --git a/docker-java-api/src/main/java/com/github/dockerjava/api/command/WaitContainerResultCallback.java b/docker-java-api/src/main/java/com/github/dockerjava/api/command/WaitContainerResultCallback.java
index b4a6d3cc6..6cb160151 100644
--- a/docker-java-api/src/main/java/com/github/dockerjava/api/command/WaitContainerResultCallback.java
+++ b/docker-java-api/src/main/java/com/github/dockerjava/api/command/WaitContainerResultCallback.java
@@ -27,7 +27,7 @@ public class WaitContainerResultCallback extends ResultCallbackTemplate<WaitCont
     @Override
     public void onNext(WaitResponse waitResponse) {
         this.waitResponse = waitResponse;
-        LOGGER.debug(waitResponse.toString());
+        LOGGER.debug("{}", waitResponse);
     }
 
     /**