diff --git a/src/AMBuilder b/src/AMBuilder
index b25811c..3be6a5d 100644
--- a/src/AMBuilder
+++ b/src/AMBuilder
@@ -5,24 +5,29 @@ projectName = 'TransmitManager'
 
 project = builder.LibraryProject(projectName)
 project.sources += [
-  os.path.join(Extension.ext_root, 'src', 'extension.cpp'),
-  os.path.join(Extension.sm_root, 'public', 'smsdk_ext.cpp')
+    os.path.join(Extension.ext_root, 'src', 'extension.cpp'),
+    os.path.join(Extension.sm_root, 'public', 'smsdk_ext.cpp')
 ]
 
 for sdk_name in Extension.sdks:
-  sdk = Extension.sdks[sdk_name]
-  if sdk['name'] in ['mock']:
-    continue
+    sdk = Extension.sdks[sdk_name]
+    if sdk['name'] in ['mock']:
+        continue
 
-  for cxx in builder.targets:
-    if not cxx.target.arch in sdk['platforms'][cxx.target.platform]:
-      continue
+    for cxx in builder.targets:
+        if not cxx.target.arch in sdk['platforms'][cxx.target.platform]:
+            continue
 
-    binary = Extension.HL2ExtConfig(project, builder, cxx, projectName + '.ext.' + sdk['extension'], sdk)
+        binary = Extension.HL2ExtConfig(project, builder, cxx, projectName + '.ext.' + sdk['extension'], sdk)
 
-    Extension.AddCDetour(binary)
+        Extension.AddCDetour(binary)
 
-    if cxx.target.platform in ['windows']:
-      binary.compiler.postlink += [ 'legacy_stdio_definitions.lib' ]
+        # Silence fatal errors on unrecognized Clang warning flags from CDetour
+        if cxx.family in ['gcc', 'clang']:
+            binary.compiler.cflags += ['-Wno-unknown-warning-option']
+            binary.compiler.cxxflags += ['-Wno-unknown-warning-option']
+
+        if cxx.target.platform in ['windows']:
+            binary.compiler.postlink += [ 'legacy_stdio_definitions.lib' ]
 
 Extension.extensions += builder.Add(project)