diff --git a/src/test/java/com/flowpowered/nbt/stream/EndianSwitchableStreamTest.java b/src/test/java/com/flowpowered/nbt/stream/EndianSwitchableStreamTest.java
index a2a7e12..0befff7 100644
--- a/src/test/java/com/flowpowered/nbt/stream/EndianSwitchableStreamTest.java
+++ b/src/test/java/com/flowpowered/nbt/stream/EndianSwitchableStreamTest.java
@@ -44,6 +44,7 @@ public void testWriteLEUnsignedShort() throws IOException {
         EndianSwitchableOutputStream output = new EndianSwitchableOutputStream(rawOutput, ByteOrder.LITTLE_ENDIAN);
         output.writeShort(unsigned);
         output.writeChar(testChar);
+        output.flush();
 
         EndianSwitchableInputStream input = new EndianSwitchableInputStream(new ByteArrayInputStream(rawOutput.toByteArray()), ByteOrder.LITTLE_ENDIAN);
         assertEquals(unsigned, input.readUnsignedShort());