1 files changed, 4 insertions, 1 deletions
diff --git a/src/org/traccar/protocol/AutoFonFrameDecoder.java b/src/org/traccar/protocol/AutoFonFrameDecoder.java
index 55a28c081..1ad9e6d3b 100644
--- a/src/org/traccar/protocol/AutoFonFrameDecoder.java
+++ b/src/org/traccar/protocol/AutoFonFrameDecoder.java
@@ -37,7 +37,7 @@ public class AutoFonFrameDecoder extends FrameDecoder {
             return null;
         }
 
-        int length = 0;
+        int length;
         switch (buf.getUnsignedByte(buf.readerIndex())) {
             case MSG_LOGIN:
                 length = 12;
@@ -48,6 +48,9 @@ public class AutoFonFrameDecoder extends FrameDecoder {
             case MSG_HISTORY:
                 length = 257;
                 break;
+            default:
+                length = 0;
+                break;
         }
 
         // Check length and return buffer