diff --git a/AMBuildScript b/AMBuildScript
index 6f02f8f..e75a88e 100644
--- a/AMBuildScript
+++ b/AMBuildScript
@@ -255,7 +255,7 @@ program.sources += [
   'sdk/smsdk_ext.cpp',
 ]
 
-project.sources += [os.path.join(DHooks.sm_root, 'public', 'smsdk_ext.cpp')]
+program.sources += [os.path.join(DHooks.sm_root, 'public', 'smsdk_ext.cpp')]
 
 if os.path.isfile(os.path.join(DHooks.sm_root, 'sourcepawn', 'vm', 'x86', 'assembler-x86.cpp')):
   program.sources += [os.path.join(DHooks.sm_root, 'sourcepawn', 'vm', 'x86', 'assembler-x86.cpp'),]