diff --git a/Source/Bind/ES/ES2Generator.cs b/Source/Bind/ES/ES2Generator.cs
index 6825470c..39122e37 100644
--- a/Source/Bind/ES/ES2Generator.cs
+++ b/Source/Bind/ES/ES2Generator.cs
@@ -15,6 +15,8 @@ namespace Bind.ES
         public ES2Generator(Settings settings, string dirName)
             : base(settings, dirName)
         {
+            Settings.DefaultOutputPath = Path.Combine(
+                Settings.DefaultOutputPath, "../ES20");
             Settings.DefaultOutputNamespace = "OpenTK.Graphics.ES20";
             Settings.DefaultImportsFile = "ES20Core.cs";
             Settings.DefaultDelegatesFile = "ES20Delegates.cs";
diff --git a/Source/Bind/ES/ES3Generator.cs b/Source/Bind/ES/ES3Generator.cs
index ff9b0ded..144317c8 100644
--- a/Source/Bind/ES/ES3Generator.cs
+++ b/Source/Bind/ES/ES3Generator.cs
@@ -15,8 +15,10 @@ namespace Bind.ES
         public ES3Generator(Settings settings, string dirName)
             : base(settings, dirName)
         {
+            Settings.DefaultOutputPath = Path.Combine(
+                Settings.DefaultOutputPath, "../ES30");
             Settings.DefaultOutputNamespace = "OpenTK.Graphics.ES30";
-            Settings.DefaultImportsFile = "ES30Core.cs";
+            Settings.DefaultImportsFile = "ES3Core.cs";
             Settings.DefaultDelegatesFile = "ES30Delegates.cs";
             Settings.DefaultEnumsFile = "ES30Enums.cs";
             Settings.DefaultWrappersFile = "ES30.cs";
diff --git a/Source/Bind/ES/ESGenerator.cs b/Source/Bind/ES/ESGenerator.cs
index 849061e2..b4a5e23a 100644
--- a/Source/Bind/ES/ESGenerator.cs
+++ b/Source/Bind/ES/ESGenerator.cs
@@ -15,6 +15,8 @@ namespace Bind.ES
         public ESGenerator(Settings settings, string dirName)
             : base(settings, dirName)
         {
+            Settings.DefaultOutputPath = Path.Combine(
+                Settings.DefaultOutputPath, "../ES11");
             Settings.DefaultOutputNamespace = "OpenTK.Graphics.ES11";
             Settings.DefaultImportsFile = "ES11Core.cs";
             Settings.DefaultDelegatesFile = "ES11Delegates.cs";
diff --git a/Source/Bind/GL2/GL4Generator.cs b/Source/Bind/GL2/GL4Generator.cs
index f8171042..360f835b 100644
--- a/Source/Bind/GL2/GL4Generator.cs
+++ b/Source/Bind/GL2/GL4Generator.cs
@@ -38,6 +38,8 @@ namespace Bind.GL2
         public GL4Generator(Settings settings, string dirname)
             : base(settings, dirname)
         {
+            Settings.DefaultOutputPath = Path.Combine(
+                Settings.DefaultOutputPath, "../OpenGL4");
             Settings.DefaultOutputNamespace = "OpenTK.Graphics.OpenGL4";
             Settings.DefaultImportsFile = "GL4Core.cs";
             Settings.DefaultDelegatesFile = "GL4Delegates.cs";