diff --git a/libsrc/ffdec_lib/test/com/jpexs/decompiler/flash/ActionScript3DecompileTestBase.java b/libsrc/ffdec_lib/test/com/jpexs/decompiler/flash/ActionScript3DecompileTestBase.java
index 40e7f463e..b21478dcc 100644
--- a/libsrc/ffdec_lib/test/com/jpexs/decompiler/flash/ActionScript3DecompileTestBase.java
+++ b/libsrc/ffdec_lib/test/com/jpexs/decompiler/flash/ActionScript3DecompileTestBase.java
@@ -43,6 +43,7 @@ public abstract class ActionScript3DecompileTestBase extends ActionScriptTestBas
         Configuration.decompile.set(true);
         Configuration.registerNameFormat.set("_loc%d_");
         Configuration.showMethodBodyId.set(false);
+        Configuration.displayDupInstructions.set(true);
     }
 
     protected void addSwf(String identifier, String path) throws FileNotFoundException, IOException, InterruptedException {
diff --git a/libsrc/ffdec_lib/test/com/jpexs/decompiler/flash/generators/AS3Generator.java b/libsrc/ffdec_lib/test/com/jpexs/decompiler/flash/generators/AS3Generator.java
index 938498906..871654cf9 100644
--- a/libsrc/ffdec_lib/test/com/jpexs/decompiler/flash/generators/AS3Generator.java
+++ b/libsrc/ffdec_lib/test/com/jpexs/decompiler/flash/generators/AS3Generator.java
@@ -175,6 +175,7 @@ public class AS3Generator {
         Configuration.autoDeobfuscate.set(false);
         Configuration.showMethodBodyId.set(false);
         Configuration.simplifyExpressions.set(false);
+        Configuration.displayDupInstructions.set(true);
 
 
         useFile("ActionScript3ClassicDecompileTest", new String[][]{{"testdata/as3_new/bin/as3_new.flex.swf", "classic"}}, false);