diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/pebble/PebbleIoThread.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/pebble/PebbleIoThread.java
index 0f50e69f4..ff920162f 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/pebble/PebbleIoThread.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/pebble/PebbleIoThread.java
@@ -419,6 +419,11 @@ public class PebbleIoThread extends GBDeviceIoThread {
 
         mPBWReader = null;
         mIsInstalling = false;
+        try {
+            mZis.close();
+        } catch (IOException e) {
+            // ignore
+        }
         mZis = null;
         mAppInstallToken = -1;
         mInstallSlot = -2;