diff --git a/public/sample_ext/AMBuildScript b/public/sample_ext/AMBuildScript
index 11872c06..cbb61a8e 100644
--- a/public/sample_ext/AMBuildScript
+++ b/public/sample_ext/AMBuildScript
@@ -1,13 +1,6 @@
 # vim: set sts=2 ts=8 sw=2 tw=99 et ft=python:
 import os, sys
 
-projectName = 'sample'
-
-#smsdk_ext.cpp will be automatically added later
-sourceFiles = [
-  'extension.cpp',
-]
-
 ###############
 # Make sure to edit PackageScript, which copies your files to their appropriate locations
 # Simple extensions do not need to modify past this point.
@@ -422,26 +415,10 @@ Extension = ExtensionConfig()
 Extension.detectSDKs()
 Extension.configure()
 
-project = Extension.HL2Project(builder, projectName + '.ext')
-
-if os.path.isfile(os.path.join(builder.currentSourcePath, 'smsdk_ext.cpp')):
-  # Use the copy included in the project
-  project.sources += ['smsdk_ext.cpp']
-else:
-  # Use the copy included with SM 1.6 and newer
-  project.sources += [os.path.join(Extension.sm_root, 'public', 'smsdk_ext.cpp')]
-
-project.sources += sourceFiles
-  
-for sdk_name in Extension.sdks:
-  sdk = Extension.sdks[sdk_name]
-  
-  binary = Extension.HL2Config(project, projectName + '.ext.' + sdk.ext, sdk)
-
-Extension.extensions = builder.Add(project)
-
 # Add additional buildscripts here
-BuildScripts = []
+BuildScripts = [
+  'AMBuilder',
+]
 
 if builder.backend == 'amb2':
   BuildScripts += [
diff --git a/public/sample_ext/AMBuilder b/public/sample_ext/AMBuilder
new file mode 100644
index 00000000..da129ac2
--- /dev/null
+++ b/public/sample_ext/AMBuilder
@@ -0,0 +1,27 @@
+# vim: set sts=2 ts=8 sw=2 tw=99 et ft=python:
+import os, sys
+
+projectName = 'sample'
+
+#smsdk_ext.cpp will be automatically added later
+sourceFiles = [
+  'extension.cpp',
+]
+
+project = Extension.HL2Project(builder, projectName + '.ext')
+
+if os.path.isfile(os.path.join(builder.currentSourcePath, 'smsdk_ext.cpp')):
+  # Use the copy included in the project
+  project.sources += ['smsdk_ext.cpp']
+else:
+  # Use the copy included with SM 1.6 and newer
+  project.sources += [os.path.join(Extension.sm_root, 'public', 'smsdk_ext.cpp')]
+
+project.sources += sourceFiles
+  
+for sdk_name in Extension.sdks:
+  sdk = Extension.sdks[sdk_name]
+  
+  binary = Extension.HL2Config(project, projectName + '.ext.' + sdk.ext, sdk)
+
+Extension.extensions = builder.Add(project)