diff --git a/slf4j-1.6.1-crosslink.patch b/slf4j-1.6.1-crosslink.patch
new file mode 100644
index 0000000..d276b20
--- /dev/null
+++ b/slf4j-1.6.1-crosslink.patch
@@ -0,0 +1,16 @@
+diff -up slf4j-1.6.1/pom.xml~ slf4j-1.6.1/pom.xml
+--- slf4j-1.6.1/pom.xml~	2012-01-13 20:54:56.336392307 +0200
++++ slf4j-1.6.1/pom.xml	2012-01-13 21:05:50.590098336 +0200
+@@ -145,9 +145,11 @@
+         <configuration>
+         	<aggregate>true</aggregate>
+           <excludePackageNames>org.slf4j.migrator:org.slf4j.migrator.*</excludePackageNames>
++          <detectJavaApiLink>false</detectJavaApiLink>
++          <isOffline>false</isOffline>
+ 					<links>
+ 						<link>
+-							http://java.sun.com/j2se/1.5.0/docs/api
++							/usr/share/javadoc/java
+ 						</link>
+ 					</links>
+           <groups>
diff --git a/slf4j.spec b/slf4j.spec
index fa6be2d..e5b68bb 100644
--- a/slf4j.spec
+++ b/slf4j.spec
@@ -30,7 +30,7 @@
 
 Name:           slf4j
 Version:        1.6.1
-Release:        4%{?dist}
+Release:        5%{?dist}
 Epoch:          0
 Summary:        Simple Logging Facade for Java
 Group:          Development/Libraries
@@ -39,6 +39,7 @@ URL:            http://www.slf4j.org/
 Source0:        http://www.slf4j.org/dist/%{name}-%{version}.tar.gz
 Patch0:         %{name}-pom_xml.patch
 Patch1:         %{name}-1.6.1-srcencoding.patch
+Patch2:         %{name}-1.6.1-crosslink.patch
 Requires(post): jpackage-utils >= 0:1.7.5
 Requires(postun): jpackage-utils >= 0:1.7.5
 BuildRequires:  jpackage-utils >= 0:1.7.5
@@ -84,6 +85,8 @@ API implementation, e.g. Log4jLoggerAdapter or JDK14LoggerAdapter..
 Group:          Documentation
 Summary:        Javadoc for %{name}
 Requires:       jpackage-utils
+BuildRequires:  java-javadoc
+Requires:       java-javadoc
 
 %description javadoc
 API documentation for %{name}.
@@ -99,6 +102,7 @@ Manual for %{name}.
 %setup -q
 %patch0 -p0  -b .sav
 %patch1 -p1
+%patch2 -p1
 find . -name "*.jar" | xargs rm
 
 sed -i -e "s|ant<|org.apache.ant<|g" integration/pom.xml
@@ -210,6 +214,9 @@ install -m 644 LICENSE.txt $RPM_BUILD_ROOT%{_docdir}/%{name}-%{version}/
 %{_docdir}/%{name}-%{version}/site
 
 %changelog
+* Fri Jan 13 2012 Ville Skyttä <ville.skytta@iki.fi> - 0:1.6.1-5
+- Crosslink with local JDK API docs.
+
 * Fri Jan 13 2012 Ville Skyttä <ville.skytta@iki.fi> - 0:1.6.1-4
 - Specify explicit source encoding to fix build with Java 1.7.
 - Remove no longer needed javadoc dir upgrade hack.