diff --git a/make/doxygen.mk b/make/doxygen.mk
index 99dfb9d6..486f72fe 100644
--- a/make/doxygen.mk
+++ b/make/doxygen.mk
@@ -46,7 +46,7 @@ doxygen.done: $(UNTEMPLATED)
 	touch $@
 
 cpfiles.done: doxygen.done $(DOC_FILES) 
-	cp $(DOC_FILES) $(OUTPUT_DIR)
+	umask 022; cp $(DOC_FILES) $(OUTPUT_DIR)
 	touch $@
 
 doc.done: doxygen.done cpfiles.done