1 files changed, 4 insertions, 0 deletions
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/ProgressScaler.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/ProgressScaler.java
index 95a259336..5256f5212 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/ProgressScaler.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/ProgressScaler.java
@@ -28,6 +28,10 @@ public class ProgressScaler implements Progressable {
     final Progressable mWrapped;
     final int mFrom, mTo, mMax;
 
+    public ProgressScaler() {
+        mWrapped = null;
+        mFrom = mTo = mMax = 0;
+    }
     public ProgressScaler(Progressable wrapped, int from, int to, int max) {
         this.mWrapped = wrapped;
         this.mFrom = from;