diff --git a/CHANGELOG.md b/CHANGELOG.md
index fdb87a23f..6d015f599 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,7 @@ All notable changes to this project will be documented in this file.
 - [#1762] AS - switch detection (mostcommon pathpart)
 - [#1763] AS3 - initialization of activation object in some cases
 - AS3 - direct editation - arguments object on method with activation
+- AS3 - direct editation - bit not
 
 ## [15.0.0] - 2021-11-29
 ### Added
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/abc/avm2/parser/script/ActionScript3Parser.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/abc/avm2/parser/script/ActionScript3Parser.java
index 5acf22ea4..84c3da297 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/abc/avm2/parser/script/ActionScript3Parser.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/abc/avm2/parser/script/ActionScript3Parser.java
@@ -58,6 +58,7 @@ import com.jpexs.decompiler.flash.abc.avm2.model.clauses.TryAVM2Item;
 import com.jpexs.decompiler.flash.abc.avm2.model.operations.AddAVM2Item;
 import com.jpexs.decompiler.flash.abc.avm2.model.operations.AsTypeAVM2Item;
 import com.jpexs.decompiler.flash.abc.avm2.model.operations.BitAndAVM2Item;
+import com.jpexs.decompiler.flash.abc.avm2.model.operations.BitNotAVM2Item;
 import com.jpexs.decompiler.flash.abc.avm2.model.operations.BitOrAVM2Item;
 import com.jpexs.decompiler.flash.abc.avm2.model.operations.BitXorAVM2Item;
 import com.jpexs.decompiler.flash.abc.avm2.model.operations.DeletePropertyAVM2Item;
@@ -2252,7 +2253,7 @@ public class ActionScript3Parser {
                 break;
             case NEGATE:
                 ret = expressionPrimary(allOpenedNamespaces, thisType, pkg, needsActivation, importedClasses, openedNamespaces, false, registerVars, inFunction, inMethod, false, variables);
-                ret = new NegAVM2Item(null, null, ret);
+                ret = new BitNotAVM2Item(null, null, ret);
 
                 break;
             case MINUS:
diff --git a/libsrc/ffdec_lib/test/com/jpexs/decompiler/flash/as3decompile/ActionScript3ClassicAirDecompileTest.java b/libsrc/ffdec_lib/test/com/jpexs/decompiler/flash/as3decompile/ActionScript3ClassicAirDecompileTest.java
index 4cd5aa870..903e5f465 100644
--- a/libsrc/ffdec_lib/test/com/jpexs/decompiler/flash/as3decompile/ActionScript3ClassicAirDecompileTest.java
+++ b/libsrc/ffdec_lib/test/com/jpexs/decompiler/flash/as3decompile/ActionScript3ClassicAirDecompileTest.java
@@ -16,6 +16,19 @@ public class ActionScript3ClassicAirDecompileTest extends ActionScript3Decompile
         addSwf("classic_air", "testdata/as3_new/bin/as3_new.air.swf");
     }
 
+    @Test
+    public void testActivationArguments() {
+        decompileMethod("classic_air", "testActivationArguments", "var func:Function = function(a:int, b:int):int\r\n"
+                + "{\r\n"
+                + "return a + b;\r\n"
+                + "};\r\n"
+                + "if(arguments.length > 0)\r\n"
+                + "{\r\n"
+                + "trace(arguments[0]);\r\n"
+                + "}\r\n",
+                false);
+    }
+
     @Test
     public void testArguments() {
         decompileMethod("classic_air", "testArguments", "return arguments[0];\r\n",
@@ -1211,6 +1224,13 @@ public class ActionScript3ClassicAirDecompileTest extends ActionScript3Decompile
                 false);
     }
 
+    @Test
+    public void testNegate() {
+        decompileMethod("classic_air", "testNegate", "var a:int = 5;\r\n"
+                + "var b:int = ~a;\r\n",
+                false);
+    }
+
     @Test
     public void testNumberCall() {
         decompileMethod("classic_air", "testNumberCall", "var a:String = (5).toString();\r\n"
diff --git a/libsrc/ffdec_lib/test/com/jpexs/decompiler/flash/as3decompile/ActionScript3ClassicDecompileTest.java b/libsrc/ffdec_lib/test/com/jpexs/decompiler/flash/as3decompile/ActionScript3ClassicDecompileTest.java
index 76057df37..bc8f6a150 100644
--- a/libsrc/ffdec_lib/test/com/jpexs/decompiler/flash/as3decompile/ActionScript3ClassicDecompileTest.java
+++ b/libsrc/ffdec_lib/test/com/jpexs/decompiler/flash/as3decompile/ActionScript3ClassicDecompileTest.java
@@ -16,6 +16,19 @@ public class ActionScript3ClassicDecompileTest extends ActionScript3DecompileTes
         addSwf("classic", "testdata/as3_new/bin/as3_new.flex.swf");
     }
 
+    @Test
+    public void testActivationArguments() {
+        decompileMethod("classic", "testActivationArguments", "var func:Function = function(a:int, b:int):int\r\n"
+                + "{\r\n"
+                + "return a + b;\r\n"
+                + "};\r\n"
+                + "if(arguments.length > 0)\r\n"
+                + "{\r\n"
+                + "trace(arguments[0]);\r\n"
+                + "}\r\n",
+                false);
+    }
+
     @Test
     public void testArguments() {
         decompileMethod("classic", "testArguments", "return arguments[0];\r\n",
@@ -1204,6 +1217,13 @@ public class ActionScript3ClassicDecompileTest extends ActionScript3DecompileTes
                 false);
     }
 
+    @Test
+    public void testNegate() {
+        decompileMethod("classic", "testNegate", "var a:int = 5;\r\n"
+                + "var b:int = ~a;\r\n",
+                false);
+    }
+
     @Test
     public void testNumberCall() {
         decompileMethod("classic", "testNumberCall", "var a:String = (5).toString();\r\n"
diff --git a/libsrc/ffdec_lib/testdata/as3_new/bin/as3_new.air.swf b/libsrc/ffdec_lib/testdata/as3_new/bin/as3_new.air.swf
index 3756fe40b..af8abec9b 100644
Binary files a/libsrc/ffdec_lib/testdata/as3_new/bin/as3_new.air.swf and b/libsrc/ffdec_lib/testdata/as3_new/bin/as3_new.air.swf differ
diff --git a/libsrc/ffdec_lib/testdata/as3_new/bin/as3_new.flex.swf b/libsrc/ffdec_lib/testdata/as3_new/bin/as3_new.flex.swf
index 8870e2c2b..999321e54 100644
Binary files a/libsrc/ffdec_lib/testdata/as3_new/bin/as3_new.flex.swf and b/libsrc/ffdec_lib/testdata/as3_new/bin/as3_new.flex.swf differ
diff --git a/libsrc/ffdec_lib/testdata/as3_new/obj/as3_newConfig.old b/libsrc/ffdec_lib/testdata/as3_new/obj/as3_newConfig.old
index ccc475909..09cd1e0d1 100644
--- a/libsrc/ffdec_lib/testdata/as3_new/obj/as3_newConfig.old
+++ b/libsrc/ffdec_lib/testdata/as3_new/obj/as3_newConfig.old
@@ -16,7 +16,7 @@
     </define>
     <define append="true">
       <name>CONFIG::timeStamp</name>
-      <value>'02.12.2021'</value>
+      <value>'04.12.2021'</value>
     </define>
     <define append="true">
       <name>CONFIG::air</name>
diff --git a/libsrc/ffdec_lib/testdata/as3_new/src/Main.as b/libsrc/ffdec_lib/testdata/as3_new/src/Main.as
index d0152fc44..9b67fd771 100644
--- a/libsrc/ffdec_lib/testdata/as3_new/src/Main.as
+++ b/libsrc/ffdec_lib/testdata/as3_new/src/Main.as
@@ -77,6 +77,7 @@ package
 		TestMultipleCondition;
 		TestNamedAnonFunctions;
 		TestNames;
+		TestNegate;
 		TestNumberCall;
 		TestOptionalParameters;
 		TestParamNames;
diff --git a/libsrc/ffdec_lib/testdata/as3_new/src/tests/TestNegate.as b/libsrc/ffdec_lib/testdata/as3_new/src/tests/TestNegate.as
new file mode 100644
index 000000000..d37887a56
--- /dev/null
+++ b/libsrc/ffdec_lib/testdata/as3_new/src/tests/TestNegate.as
@@ -0,0 +1,12 @@
+package tests
+{
+	
+	public class TestNegate
+	{
+		public function run():void
+		{
+			var a:int = 5;
+			var b:int = ~a;
+		}
+	}
+}