diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/huawei/HuaweiWorkoutGbParser.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/huawei/HuaweiWorkoutGbParser.java
index 3f89bcf10..4ae76f4d7 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/huawei/HuaweiWorkoutGbParser.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/huawei/HuaweiWorkoutGbParser.java
@@ -412,11 +412,12 @@ public class HuaweiWorkoutGbParser {
                 int cyclingPowerCount = 0;
                 int avgAltitude = 0;
                 int altitudeCount = 0;
-                int minAltitude = 0;
-                int maxAltitude = 0;
+                int minAltitude = Integer.MAX_VALUE;
+                int maxAltitude = Integer.MIN_VALUE;
                 Integer previousAlt = null;
                 int sumAltitudeUp = 0;
                 int sumAltitudeDown = 0;
+
                 for (HuaweiWorkoutDataSample dataSample : dataSamples) {
                     if (dataSample.getSpeed() != -1) {
                         speed += dataSample.getSpeed();