1 files changed, 1 insertions, 1 deletions
diff --git a/src/main/java/org/traccar/protocol/UproProtocolDecoder.java b/src/main/java/org/traccar/protocol/UproProtocolDecoder.java
index f23274a8f..ed714e464 100644
--- a/src/main/java/org/traccar/protocol/UproProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/UproProtocolDecoder.java
@@ -71,7 +71,7 @@ public class UproProtocolDecoder extends BaseProtocolDecoder {
             position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_MIN_MIN));
 
             int flags = parser.nextInt(0);
-            position.setValid(BitUtil.check(flags, 0));
+            position.setValid(!BitUtil.check(flags, 0));
             if (!BitUtil.check(flags, 1)) {
                 position.setLatitude(-position.getLatitude());
             }