diff --git a/src/main/java/com/reandroid/archive2/writer/ApkWriter.java b/src/main/java/com/reandroid/archive2/writer/ApkWriter.java
index 377b976..6e1a61f 100644
--- a/src/main/java/com/reandroid/archive2/writer/ApkWriter.java
+++ b/src/main/java/com/reandroid/archive2/writer/ApkWriter.java
@@ -85,6 +85,9 @@ public class ApkWriter extends ZipFileOutput {
     }
     private void align(List<OutputSource> outputList){
         ZipAligner aligner = getZipAligner();
+        if(aligner!=null){
+            aligner.reset();
+        }
         for(OutputSource outputSource:outputList){
             outputSource.align(aligner);
         }
diff --git a/src/main/java/com/reandroid/archive2/writer/ZipAligner.java b/src/main/java/com/reandroid/archive2/writer/ZipAligner.java
index 94671d3..62d0f18 100644
--- a/src/main/java/com/reandroid/archive2/writer/ZipAligner.java
+++ b/src/main/java/com/reandroid/archive2/writer/ZipAligner.java
@@ -53,13 +53,13 @@ public class ZipAligner {
         }
         this.defaultAlignment = defaultAlignment;
     }
-    public void reset(){
-        mCurrentOffset = 0;
-    }
     public void setEnableDataDescriptor(boolean enableDataDescriptor) {
         this.enableDataDescriptor = enableDataDescriptor;
     }
 
+    void reset(){
+        mCurrentOffset = 0;
+    }
     void align(InputSource inputSource, LocalFileHeader lfh){
         lfh.setExtra(null);
         int padding;