diff --git a/Source/SConscript b/Source/SConscript
index fb4c5036..1c45b57a 100644
--- a/Source/SConscript
+++ b/Source/SConscript
@@ -8,6 +8,7 @@ makensis_files = Split("""
 	crc32.c
 	DialogTemplate.cpp
 	dirreader.cpp
+	fileform.cpp
 	growbuf.cpp
 	lang.cpp
 	lineparse.cpp
@@ -21,6 +22,7 @@ makensis_files = Split("""
 	strlist.cpp
 	tokens.cpp
 	util.cpp
+	writer.cpp
 """)
 
 bzip2_files = Split("""