diff --git a/presto-main/src/main/java/io/prestosql/execution/SqlStageExecution.java b/presto-main/src/main/java/io/prestosql/execution/SqlStageExecution.java
index eaed6bfc1..1537035e7 100644
--- a/presto-main/src/main/java/io/prestosql/execution/SqlStageExecution.java
+++ b/presto-main/src/main/java/io/prestosql/execution/SqlStageExecution.java
@@ -335,7 +335,7 @@ public synchronized void cancelToResume()
 
     public void OnSnapshotXCompleted(boolean capture, long snapshotId)
     {
-        log.debug("OnSnapshotXCompleted() is called!, capture: %b, snapshotId: %d", capture, snapshotId);
+        LOG.debug("OnSnapshotXCompleted() is called!, capture: %b, snapshotId: %d", capture, snapshotId);
         if (!capture) {
             restoreInProgress = false;
             captureSnapshotId = 0;
diff --git a/presto-main/src/main/java/io/prestosql/operator/HttpPageBufferClient.java b/presto-main/src/main/java/io/prestosql/operator/HttpPageBufferClient.java
index 538684143..8e032cea4 100644
--- a/presto-main/src/main/java/io/prestosql/operator/HttpPageBufferClient.java
+++ b/presto-main/src/main/java/io/prestosql/operator/HttpPageBufferClient.java
@@ -440,7 +440,7 @@ public void onFailure(Throwable t)
                          * if node is otherwise (e.g.active), keep retrying till timeout of maxErrorDuration
                          */
                         FailureDetector.State state = failureDetector.getState(fromUri(uri));
-                        log.debug("failure detector state is " + state.toString());
+                        LOG.debug("failure detector state is " + state.toString());
                         hasFailed = (backoff.maxTried() &&
                                 !FailureDetector.State.ALIVE.equals(state)
                                 || backoff.timeout());