diff --git a/core/src/main/java/org/apache/spark/util/collection/unsafe/sort/UnsafeExternalSorter.java b/core/src/main/java/org/apache/spark/util/collection/unsafe/sort/UnsafeExternalSorter.java
index 231451468320..1b206c11d9a8 100644
--- a/core/src/main/java/org/apache/spark/util/collection/unsafe/sort/UnsafeExternalSorter.java
+++ b/core/src/main/java/org/apache/spark/util/collection/unsafe/sort/UnsafeExternalSorter.java
@@ -584,7 +584,7 @@ public void loadNext() throws IOException {
               // method locks the `TaskMemoryManager`, and it's a bad idea to lock 2 objects in
               // sequence. We may hit dead lock if another thread locks `TaskMemoryManager` and
               // `SpillableIterator` in sequence, which may happen in
-              // `TaskMemoryManager.acquireExecutionMemory`. 
+              // `TaskMemoryManager.acquireExecutionMemory`.
               pageToFree = lastPage;
               lastPage = null;
             }