diff --git a/jsch-0.1.54-sourcetarget.patch b/jsch-0.1.54-sourcetarget.patch
new file mode 100644
index 0000000..6f1bad6
--- /dev/null
+++ b/jsch-0.1.54-sourcetarget.patch
@@ -0,0 +1,13 @@
+--- jsch-0.1.54/build.xml	2016-08-30 09:06:39.000000000 +0200
++++ jsch-0.1.54/build.xml	2017-09-08 10:27:56.694518991 +0200
+@@ -35,8 +35,8 @@
+     </available>
+     <javac srcdir="${src}"
+            destdir="${build}"
+-           target="1.4"
+-           source="1.4"
++           target="1.6"
++           source="1.6"
+            debug="${javac.debug}">
+       <classpath refid="lib.path.ref"/>
+       <exclude name="com/jcraft/jsch/jcraft/Compression.java"
diff --git a/jsch.changes b/jsch.changes
index fe765cf..3cf7a21 100644
--- a/jsch.changes
+++ b/jsch.changes
@@ -1,3 +1,11 @@
+-------------------------------------------------------------------
+Fri Sep  8 08:31:01 UTC 2017 - fstrba@suse.com
+
+- Added patch:
+  * jsch-0.1.54-sourcetarget.patch
+    - Specify java source and target levels to 1.6, in order to
+      allow building with jdk9
+
 -------------------------------------------------------------------
 Fri Jun  9 10:59:34 UTC 2017 - tchvatal@suse.com
 
diff --git a/jsch.spec b/jsch.spec
index d121233..2619563 100644
--- a/jsch.spec
+++ b/jsch.spec
@@ -27,6 +27,7 @@ Source0:        http://downloads.sourceforge.net/%{name}/%{name}-%{version}.zip
 Source1:        MANIFEST.MF
 Source2:        plugin.properties
 Source3:        http://repo1.maven.org/maven2/com/jcraft/%{name}/%{version}/%{name}-%{version}.pom
+Patch0:         jsch-0.1.54-sourcetarget.patch
 BuildRequires:  ant
 BuildRequires:  java-devel >= 1.6.0
 BuildRequires:  javapackages-local
@@ -63,6 +64,7 @@ functionality into your own Java programs.
 
 %prep
 %setup -q
+%patch0 -p1
 
 %build
 export CLASSPATH=$(build-classpath jzlib)