diff --git a/CHANGES.md b/CHANGES.md
index 5dae203..ff7b4ad 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,8 @@
+# Changes in Mini-XML 4.0.1
+
+- Fixed missing "docdir" definition in makefile.
+
+
 # Changes in Mini-XML 4.0.0
 
 - Now require C99 support (Issue #300)
diff --git a/Makefile.in b/Makefile.in
index 7bbbcb4..f7845bd 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -115,6 +115,7 @@ OPTIM		=	@OPTIM@
 bindir		=	@bindir@
 datadir		=	@datadir@
 datarootdir	=	@datarootdir@
+docdir		=	@docdir@
 exec_prefix	=	@exec_prefix@
 includedir	=	@includedir@
 infodir		=	@infodir@