1 files changed, 2 insertions, 1 deletions
diff --git a/src/org/traccar/protocol/WondexProtocolDecoder.java b/src/org/traccar/protocol/WondexProtocolDecoder.java
index 556e1b2ad..0c627b07c 100644
--- a/src/org/traccar/protocol/WondexProtocolDecoder.java
+++ b/src/org/traccar/protocol/WondexProtocolDecoder.java
@@ -24,6 +24,7 @@ import org.jboss.netty.channel.Channel;
 import org.jboss.netty.channel.ChannelHandlerContext;
 
 import org.traccar.BaseProtocolDecoder;
+import org.traccar.helper.UnitsConverter;
 import org.traccar.model.Event;
 import org.traccar.model.Position;
 
@@ -88,7 +89,7 @@ public class WondexProtocolDecoder extends BaseProtocolDecoder {
         // Position data
         position.setLongitude(Double.valueOf(parser.group(index++)));
         position.setLatitude(Double.valueOf(parser.group(index++)));
-        position.setSpeed(Double.valueOf(parser.group(index++)) * 0.539957);
+        position.setSpeed(UnitsConverter.knotsFromKph(Double.valueOf(parser.group(index++))));
         position.setCourse(Double.valueOf(parser.group(index++)));
         position.setAltitude(Double.valueOf(parser.group(index++)));