diff --git a/Source/Core/Windows/LinedefEditForm.cs b/Source/Core/Windows/LinedefEditForm.cs
index f2cc1334ac340aee3a87cc5c7952e4eb37355609..46173d1805b32fc8c789ff80508c9c00c3841333 100755
--- a/Source/Core/Windows/LinedefEditForm.cs
+++ b/Source/Core/Windows/LinedefEditForm.cs
@@ -87,6 +87,9 @@ namespace CodeImp.DoomBuilder.Windows
 		{
 			// Initialize
 			InitializeComponent();
+			#if MONO_WINFORMS
+			frontgroup.Enabled = true;
+			#endif
 			
 			// Fill flags lists
 			foreach(KeyValuePair<string, string> lf in General.Map.Config.LinedefFlags)
diff --git a/Source/Core/Windows/LinedefEditFormUDMF.cs b/Source/Core/Windows/LinedefEditFormUDMF.cs
index 73f2f66b30b490808de0eb4c0a58f3fb1bd14277..dbf4ea2793b24882b1f4f0528bc7a7fe514327cf 100755
--- a/Source/Core/Windows/LinedefEditFormUDMF.cs
+++ b/Source/Core/Windows/LinedefEditFormUDMF.cs
@@ -135,6 +135,9 @@ namespace CodeImp.DoomBuilder.Windows
 		{
 			// Initialize
 			InitializeComponent();
+			#if MONO_WINFORMS
+			frontgroup.Enabled = true;
+			#endif
 
 			// Widow setup
 			if(General.Settings.StoreSelectedEditTab)