diff --git a/Makefile b/Makefile
index 8b0c549..41288ee 100644
--- a/Makefile
+++ b/Makefile
@@ -115,7 +115,7 @@ dist-bin: all
 	@tar --exclude=*~ -cjf $(TARGET)-$(VERSION).tar.bz2 include lib
 
 dist-src:
-	@tar --exclude=*~ -cjf $(TARGET)-src-$(VERSION).tar.bz2 include source Makefile
+	@tar --exclude=*~ -cjf $(TARGET)-src-$(VERSION).tar.bz2 include $(SOURCES) Makefile
 
 dist: dist-src dist-bin