diff --git a/sysdep/config.h b/sysdep/config.h
index 276929e2..cee980c4 100644
--- a/sysdep/config.h
+++ b/sysdep/config.h
@@ -17,6 +17,10 @@
 
 #ifndef MACROS_ONLY
 
+/*
+ *  Of course we could add the paths to autoconf.h, but autoconf
+ *  is stupid and puts make-specific substitutious to the paths.
+ */
 #include "sysdep/paths.h"
 
 /* Types */