diff --git a/doc/Makefile b/doc/Makefile
index 0f09783699..25774c7bad 100644
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -27,9 +27,9 @@ HTMLPAGES   = $(AVPROGS-yes:%=doc/%.html) $(AVPROGS-yes:%=doc/%-all.html) $(COMP
               doc/mailing-list-faq.html                                 \
               doc/nut.html                                              \
               doc/platform.html                                         \
-              doc/bootstrap.min.css                                     \
-              doc/style.min.css                                         \
-              doc/default.css                                           \
+              $(SRC_PATH)/doc/bootstrap.min.css                         \
+              $(SRC_PATH)/doc/style.min.css                             \
+              $(SRC_PATH)/doc/default.css                               \
 
 TXTPAGES    = doc/fate.txt                                              \