diff --git a/src/test/scala/tlschannel/util/DirectBufferDeallocatorTest.java b/src/test/scala/tlschannel/util/DirectBufferDeallocatorTest.java
index 3f749134..99472c00 100644
--- a/src/test/scala/tlschannel/util/DirectBufferDeallocatorTest.java
+++ b/src/test/scala/tlschannel/util/DirectBufferDeallocatorTest.java
@@ -10,8 +10,8 @@ public class DirectBufferDeallocatorTest {
 
     @Test
     public void testDirectBufferDeallocator() {
-        var deallocator = new DirectBufferDeallocator();
-        var buffer = ByteBuffer.allocateDirect(1000);
+        DirectBufferDeallocator deallocator = new DirectBufferDeallocator();
+        ByteBuffer buffer = ByteBuffer.allocateDirect(1000);
         deallocator.deallocate(buffer);
     }
 }