diff --git a/src/the/bytecode/club/bytecodeviewer/Settings.java b/src/the/bytecode/club/bytecodeviewer/Settings.java
index 305d0da9..a0c6dfc1 100644
--- a/src/the/bytecode/club/bytecodeviewer/Settings.java
+++ b/src/the/bytecode/club/bytecodeviewer/Settings.java
@@ -233,6 +233,7 @@ public class Settings {
             DiskWriter.writeNewLine(BytecodeViewer.settingsName, String.valueOf(BytecodeViewer.viewer.forcePureAsciiAsText.isSelected()), false);
             DiskWriter.writeNewLine(BytecodeViewer.settingsName, String.valueOf(BytecodeViewer.viewer.synchronizedViewing.isSelected()), false);
             DiskWriter.writeNewLine(BytecodeViewer.settingsName, String.valueOf(BytecodeViewer.viewer.showClassMethods.isSelected()), false);
+            DiskWriter.writeNewLine(BytecodeViewer.settingsName, String.valueOf(BytecodeViewer.viewer.ren.isSelected()), false);
         } catch (Exception e) {
             new the.bytecode.club.bytecodeviewer.api.ExceptionUI(e);
         }
@@ -449,6 +450,7 @@ public class Settings {
             BytecodeViewer.viewer.forcePureAsciiAsText.setSelected(Boolean.parseBoolean(DiskReader.loadString(BytecodeViewer.settingsName, 122, false)));
             BytecodeViewer.viewer.synchronizedViewing.setSelected(Boolean.parseBoolean(DiskReader.loadString(BytecodeViewer.settingsName, 123, false)));
             BytecodeViewer.viewer.showClassMethods.setSelected(Boolean.parseBoolean(DiskReader.loadString(BytecodeViewer.settingsName, 124, false)));
+            BytecodeViewer.viewer.ren.setSelected(Boolean.parseBoolean(DiskReader.loadString(BytecodeViewer.settingsName, 125, false)));
         } catch (Exception e) {
             //ignore because errors are expected, first start up and outdated settings.
             //e.printStackTrace();
diff --git a/src/the/bytecode/club/bytecodeviewer/decompilers/FernFlowerDecompiler.java b/src/the/bytecode/club/bytecodeviewer/decompilers/FernFlowerDecompiler.java
index 0e3423d1..7dfac2a7 100644
--- a/src/the/bytecode/club/bytecodeviewer/decompilers/FernFlowerDecompiler.java
+++ b/src/the/bytecode/club/bytecodeviewer/decompilers/FernFlowerDecompiler.java
@@ -161,7 +161,8 @@ public class FernFlowerDecompiler extends Decompiler {
                 "-udv=" + r(BytecodeViewer.viewer.udv.isSelected()),
                 "-rer=" + r(BytecodeViewer.viewer.rer.isSelected()),
                 "-fdi=" + r(BytecodeViewer.viewer.fdi.isSelected()),
-                "-asc=" + r(BytecodeViewer.viewer.asc.isSelected()), className,
+                "-asc=" + r(BytecodeViewer.viewer.asc.isSelected()),
+                "-ren=" + r(BytecodeViewer.viewer.ren.isSelected()), className,
                 folder};
     }
 
diff --git a/src/the/bytecode/club/bytecodeviewer/gui/MainViewerGUI.java b/src/the/bytecode/club/bytecodeviewer/gui/MainViewerGUI.java
index fb97cbe1..0b908f91 100644
--- a/src/the/bytecode/club/bytecodeviewer/gui/MainViewerGUI.java
+++ b/src/the/bytecode/club/bytecodeviewer/gui/MainViewerGUI.java
@@ -93,6 +93,7 @@ public class MainViewerGUI extends JFrame implements FileChangeNotifier
     public JCheckBoxMenuItem rer = new JCheckBoxMenuItem("Remove empty exception ranges");
     public JCheckBoxMenuItem fdi = new JCheckBoxMenuItem("Deinline finally structures");
     public JCheckBoxMenuItem asc = new JCheckBoxMenuItem("Allow only ASCII characters in strings");
+    public JCheckBoxMenuItem ren = new JCheckBoxMenuItem("Rename ambiguous classes and class elements");
     public final JMenuItem mntmNewWorkspace = new JMenuItem("New Workspace");
     public JMenu mnRecentFiles = new JMenu("Recent Files");
     public final JMenuItem mntmNewMenuItem = new JMenuItem("Decompile & Save All Classes..");
@@ -2250,6 +2251,7 @@ public class MainViewerGUI extends JFrame implements FileChangeNotifier
         udv.setSelected(true);
         fdi.setSelected(true);
         asc.setSelected(false);
+        ren.setSelected(false);
 
         JMenu mnDecompilerSettings = new JMenu("FernFlower");
         mnSettings.add(mnDecompilerSettings);
@@ -2279,6 +2281,7 @@ public class MainViewerGUI extends JFrame implements FileChangeNotifier
         mnDecompilerSettings.add(udv);
         mnDecompilerSettings.add(fdi);
         mnDecompilerSettings.add(asc);
+        mnDecompilerSettings.add(ren);
         debugHelpers.setSelected(true);
         // other
         chckbxmntmAppendBrackets.setSelected(true);