diff --git a/SConstruct b/SConstruct
index 61e79a58f..167eec9fb 100644
--- a/SConstruct
+++ b/SConstruct
@@ -816,7 +816,7 @@ class DXXProgram(DXXCommon):
 'editor/autosave.cpp',
 'editor/centers.cpp',
 'editor/curves.cpp',
-'editor/eglobal.c',
+'editor/eglobal.cpp',
 'editor/elight.c',
 'editor/eobject.c',
 'editor/eswitch.c',
diff --git a/similar/editor/eglobal.c b/similar/editor/eglobal.cpp
similarity index 100%
rename from similar/editor/eglobal.c
rename to similar/editor/eglobal.cpp