diff --git a/development/scons/scons_manifest.py b/development/scons/scons_manifest.py
index 4b4ad9dff9..cb404e4e78 100644
--- a/development/scons/scons_manifest.py
+++ b/development/scons/scons_manifest.py
@@ -352,7 +352,6 @@ src_support_files = Split('''
     lyxtime.cpp
     os.cpp
     socktools.cpp
-    tempname.cpp
     unicode.cpp
     userinfo.cpp
 ''')