diff --git a/autofs-5.0.1-allow-dot-in-master-macro.patch b/autofs-5.0.1-allow-dot-in-master-macro.patch
new file mode 100644
index 0000000..87e3f44
--- /dev/null
+++ b/autofs-5.0.1-allow-dot-in-master-macro.patch
@@ -0,0 +1,13 @@
+diff --git a/lib/master_tok.l b/lib/master_tok.l
+index a5d6066..c15ef68 100644
+--- a/lib/master_tok.l
++++ b/lib/master_tok.l
+@@ -89,7 +89,7 @@ NL		\r?\n
+ CONT		\\\n{OPTWS}
+ 
+ OPTIONSTR	([\-]?([[:alpha:]_]([[:alnum:]_\-])*(=([[:alnum:]_\-])+)*)+)
+-MACROSTR	(-D{OPTWS}([[:alpha:]_]([[:alnum:]_\-])*)=([[:alnum:]_\-])+)
++MACROSTR	(-D{OPTWS}([[:alpha:]_]([[:alnum:]_\-])*)=([[:alnum:]_\-\.])+)
+ SLASHIFYSTR	(--(no-)?slashify-colons)
+ NUMBER		[0-9]+
+ 
diff --git a/autofs.spec b/autofs.spec
index 52a3065..b599b5f 100644
--- a/autofs.spec
+++ b/autofs.spec
@@ -4,7 +4,7 @@
 Summary: A tool for automatically mounting and unmounting filesystems
 Name: autofs
 Version: 5.0.1
-Release: 9
+Release: 10
 Epoch: 1
 License: GPL
 Group: System Environment/Daemons
@@ -27,6 +27,7 @@ Patch14: autofs-5.0.1-cmd-global-options.patch
 Patch15: autofs-5.0.1-localfs-label-check.patch
 Patch16: autofs-5.0.1-disable-exports-check.patch
 Patch17: autofs-5.0.1-cmd-global-options-fix.patch
+Patch18: autofs-5.0.1-allow-dot-in-master-macro.patch
 Buildroot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 BuildRequires: autoconf, hesiod-devel, openldap-devel, bison, flex, libxml2-devel, cyrus-sasl-devel, openssl-devel
 Conflicts: kernel < 2.6.17
@@ -85,6 +86,7 @@ echo %{version}-%{release} > .version
 %patch15 -p1
 %patch16 -p1
 %patch17 -p1
+%patch18 -p1
 
 %build
 #CFLAGS="$RPM_OPT_FLAGS" ./configure --prefix=/usr --libdir=%{_libdir}
@@ -137,6 +139,9 @@ fi
 %{_libdir}/autofs/
 
 %changelog
+* Mon May 7 2007 Ian Kent <ikent@redhat.com> - 5.0.1-10
+- fix master map lexer to admit "." in macro values.
+
 * Tue Apr 17 2007 Ian Kent <ikent@redhat.com> - 5.0.1-9
 - upstream fix for filesystem is local check.
 - disable exports access control check (bz 203277).