diff --git a/android-static-binding-generator/project/staticbindinggenerator/src/main/java/org/nativescript/staticbindinggenerator/Generator.java b/android-static-binding-generator/project/staticbindinggenerator/src/main/java/org/nativescript/staticbindinggenerator/Generator.java
index 893a1dc07..e61186067 100644
--- a/android-static-binding-generator/project/staticbindinggenerator/src/main/java/org/nativescript/staticbindinggenerator/Generator.java
+++ b/android-static-binding-generator/project/staticbindinggenerator/src/main/java/org/nativescript/staticbindinggenerator/Generator.java
@@ -48,10 +48,9 @@ public Generator(String outputDir, String[] libs, boolean throwOnError) throws I
 
     public void writeBindings(String filename) throws IOException, ClassNotFoundException {
         Binding[] bindings = generateBindings(filename);
-        List<File> writenFiles = new ArrayList<File>();
+        Set<File> writtenFiles = new HashSet<File>();
         for (Binding b : bindings) {
-            if (!writenFiles.contains(b.getFile())) {
-                writenFiles.add(b.getFile());
+            if (writtenFiles.add(b.getFile())) {
                 try (PrintStream ps = new PrintStream(b.getFile())) {
                     ps.append(b.getContent());
                 }