1 files changed, 4 insertions, 3 deletions
diff --git a/test/org/traccar/protocol/Tr20ProtocolDecoderTest.java b/test/org/traccar/protocol/Tr20ProtocolDecoderTest.java
index aa978655b..ecb814708 100644
--- a/test/org/traccar/protocol/Tr20ProtocolDecoderTest.java
+++ b/test/org/traccar/protocol/Tr20ProtocolDecoderTest.java
@@ -8,9 +8,10 @@ public class Tr20ProtocolDecoderTest {
 
     @Test
     public void testDecode() throws Exception {
-        
-        Tr20ProtocolDecoder decoder = new Tr20ProtocolDecoder(new TestDataManager());
-        
+
+        Tr20ProtocolDecoder decoder = new Tr20ProtocolDecoder(null);
+        decoder.setDataManager(new TestDataManager());
+
         assertNull(decoder.decode(null, null, "%%TRACKPRO01,1"));
 
         assertNotNull(decoder.decode(null, null,