diff --git a/CHANGELOG.md b/CHANGELOG.md
index 392566cab..368d92fe6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -27,6 +27,7 @@ All notable changes to this project will be documented in this file.
 - AS3 - imports for script slot/const traits
 - AS3 direct editation - script slot/const traits assignments
 - AS3 direct editation - double returnvoid on script initializer
+- AS3 empty interface indentation
 
 ## [21.0.5] - 2024-09-05
 ### Fixed
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/abc/types/traits/TraitClass.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/abc/types/traits/TraitClass.java
index 03a829421..5cc80fbbf 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/abc/types/traits/TraitClass.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/abc/types/traits/TraitClass.java
@@ -359,6 +359,9 @@ public class TraitClass extends Trait implements TraitWithSlot {
         //instance methods
         instanceInfo.instance_traits.toString(first, abcIndex, new Class[]{TraitClass.class, TraitFunction.class, TraitMethodGetterSetter.class}, this, convertData, path + "/" + instanceInfoName, abc, false, exportMode, false, scriptIndex, class_info, writer, fullyQualifiedNames, parallel, convertData.ignoreFrameScripts ? frameTraitNames : new ArrayList<>(), isInterface);
 
+        if (first.getVal()) {
+            writer.newLine();
+        }
         writer.endClass();
         writer.endBlock(); // class
         writer.newLine();