diff --git a/CHANGELOG.md b/CHANGELOG.md
index b9f836e5f..8866663ab 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@ All notable changes to this project will be documented in this file.
 ## [Unreleased]
 ### Fixed
 - [#2424] DefineEditText handling of letterSpacing, font size on incorrect values
+- [#2391] Double not operator in ternar operator expression
 
 ## [22.0.2] - 2025-01-17
 ### Added
@@ -3691,6 +3692,7 @@ Major version of SWF to XML export changed to 2.
 [alpha 8]: https://github.com/jindrapetrik/jpexs-decompiler/compare/alpha7...alpha8
 [alpha 7]: https://github.com/jindrapetrik/jpexs-decompiler/releases/tag/alpha7
 [#2424]: https://www.free-decompiler.com/flash/issues/2424
+[#2391]: https://www.free-decompiler.com/flash/issues/2391
 [#2375]: https://www.free-decompiler.com/flash/issues/2375
 [#2374]: https://www.free-decompiler.com/flash/issues/2374
 [#2389]: https://www.free-decompiler.com/flash/issues/2389
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/graph/model/TernarOpItem.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/graph/model/TernarOpItem.java
index 3ec562d94..606137fd1 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/graph/model/TernarOpItem.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/graph/model/TernarOpItem.java
@@ -77,7 +77,7 @@ public class TernarOpItem extends GraphTargetItem {
         if (expression.getPrecedence() >= precedence) {
             writer.append("(");
         }
-        expression.toString(writer, localData);
+        expression.toStringBoolean(writer, localData);
         if (expression.getPrecedence() >= precedence) {
             writer.append(")");
         }
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 5143efcbb..0ae17c5ba 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
@@ -1997,6 +1997,15 @@ public class ActionScript3ClassicAirDecompileTest extends ActionScript3Decompile
                  false);
     }
 
+    @Test
+    public void testTernarOperator2() {
+        decompileMethod("classic_air", "testTernarOperator2", "var b:Boolean = true;\r\n"
+                + "var i:int = 1;\r\n"
+                + "var j:int = int(b ? i : i + 1);\r\n"
+                + "var k:int = int(i ? j : j + 1);\r\n",
+                 false);
+    }
+
     @Test
     public void testTry() {
         decompileMethod("classic_air", "testTry", "var i:int = 0;\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 a0a727ba1..f6e013881 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
@@ -1983,6 +1983,15 @@ public class ActionScript3ClassicDecompileTest extends ActionScript3DecompileTes
                  false);
     }
 
+    @Test
+    public void testTernarOperator2() {
+        decompileMethod("classic", "testTernarOperator2", "var b:Boolean = true;\r\n"
+                + "var i:int = 1;\r\n"
+                + "var j:int = b ? i : i + 1;\r\n"
+                + "var k:int = Boolean(i) ? j : j + 1;\r\n",
+                 false);
+    }
+
     @Test
     public void testTry() {
         decompileMethod("classic", "testTry", "var i:int = 0;\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 c876f2556..de76fe8d2 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 5ced947ef..bd22e2914 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/src/Main.as b/libsrc/ffdec_lib/testdata/as3_new/src/Main.as
index 186ef4ab7..3101b597c 100644
--- a/libsrc/ffdec_lib/testdata/as3_new/src/Main.as
+++ b/libsrc/ffdec_lib/testdata/as3_new/src/Main.as
@@ -122,6 +122,7 @@ package
         TestSwitchDefault;
         TestSwitchIf;
         TestTernarOperator;
+        TestTernarOperator2;
         TestTry;
         TestTryIf;
         TestTryReturn;
diff --git a/libsrc/ffdec_lib/testdata/as3_new/src/tests/TestAndOrCoercion.as b/libsrc/ffdec_lib/testdata/as3_new/src/tests/TestAndOrCoercion.as
index 175ab6f33..b5351cb62 100644
--- a/libsrc/ffdec_lib/testdata/as3_new/src/tests/TestAndOrCoercion.as
+++ b/libsrc/ffdec_lib/testdata/as3_new/src/tests/TestAndOrCoercion.as
@@ -24,7 +24,7 @@ package tests
             
             this.ti = ti && (ti = new TestClass());
             
-            var a = ti && (ti = new TestClass());
+            var a:* = ti && (ti = new TestClass());
             
             var b:int = 1 + (i || j); //no coercion
             
@@ -33,7 +33,7 @@ package tests
             return ti && (ti = new TestClass());
 		}
         
-        public function test(p:TestInterface)
+        public function test(p:TestInterface): void
         {
         
         }
diff --git a/libsrc/ffdec_lib/testdata/as3_new/src/tests/TestTernarOperator2.as b/libsrc/ffdec_lib/testdata/as3_new/src/tests/TestTernarOperator2.as
new file mode 100644
index 000000000..3a9a92f1b
--- /dev/null
+++ b/libsrc/ffdec_lib/testdata/as3_new/src/tests/TestTernarOperator2.as
@@ -0,0 +1,14 @@
+package tests
+{
+	
+	public class TestTernarOperator2
+	{
+		public function run():*
+		{
+			var b:Boolean = true;
+            var i:int = 1;
+            var j:int = b ? i : i + 1;
+            var k:int = i ? j : j + 1;
+		}
+	}
+}