diff --git a/src/Makefile b/src/Makefile
index 522678c..e3b8c9f 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -281,6 +281,12 @@
 #GUI_LIB_LOC = -L/usr/X11R6/lib
 # }}}
 
+# Defaults used when auto/config.mk does not exist.
+srcdir = .
+VIMNAME = vim
+EXNAME = ex
+VIEWNAME = view
+
 ######################## auto/config.mk ######################## {{{1
 # At this position auto/config.mk is included. When starting from the
 # toplevel Makefile it is almost empty. After running auto/configure it