diff --git a/bucklets/onos.bucklet b/bucklets/onos.bucklet
index dd3252e..0a530e7 100644
--- a/bucklets/onos.bucklet
+++ b/bucklets/onos.bucklet
@@ -68,7 +68,7 @@
       **kwargs
   )
 
-  cp = ':'.join(['$(classpath %s)' % c for c in deps])
+  cp = ':'.join(['$(classpath %s)' % c for c in deps]) if deps else '""'
 
   args = ( '$(location :%s)' % bare_jar_name, #input jar
            '$OUT',                            #output jar
@@ -110,29 +110,32 @@
 
   ### Checkstyle
   if srcs:
-      chk_cmd = '#!/bin/sh\n'
-      base = get_base_path()
-      chk_cmd += ' '.join(( 'java -jar $(location //lib:checkstyle)',
-                           '-c $(location //tools/build/conf:checkstyle-xml)',
-                           ' '.join(['%s/%s' % (base, s) for s in srcs]) ))
-      chk_cmd += ' | grep -E "^[^: ]*:\d+:\d+: error:"'
-      chk_cmd += ' | sed "s#^.*%s/#%s:#g"\n' % (base, name)
-      chk_cmd += 'test ${PIPESTATUS[0]} -eq 0\n' # status of java command
-      genrule(
-        name = name + '-checkstyle-sh',
-        bash = "echo '%s' > $OUT && chmod +x $OUT" % chk_cmd,
-        srcs = srcs,
-        out = 'checkstyle.sh',
-      )
+    chk_cmd = '#!/bin/sh\n'
+    # FIXME hack to add dependency on suppressions-xml in the checkstyle rule
+    chk_cmd += 'FOO="$(location //tools/build/conf:suppressions-xml)"\n'
+    base = get_base_path()
+    chk_cmd += ' '.join(( 'java -jar $(location //lib:checkstyle)',
+                         '-c $(location //tools/build/conf:checkstyle-xml)',
+                         ' '.join(['%s/%s' % (base, s) for s in srcs]) ))
+    chk_cmd += ' | grep -E "^[^: ]*:\d+:\d+: error:"'
+    chk_cmd += ' | sed "s#^.*%s/#%s:#g"\n' % (base, name)
+    chk_cmd += 'test ${PIPESTATUS[0]} -eq 0\n' # status of java command
 
-      sh_test(
-        name = name + '-checkstyle',
-        test = ':' + name + '-checkstyle-sh',
-        deps = [ ':'+ bare_jar_name ],
-        labels = [ 'checkstyle' ],
-      )
+    genrule(
+      name = name + '-checkstyle-sh',
+      bash = "echo '%s' > $OUT && chmod +x $OUT" % chk_cmd,
+      srcs = srcs,
+      out = 'checkstyle.sh',
+    )
+
+    sh_test(
+      name = name + '-checkstyle',
+      test = ':' + name + '-checkstyle-sh',
+      deps = [ ':'+ bare_jar_name ],
+      labels = [ 'checkstyle' ],
+    )
   else:
-      print 'Not generating checkstyle rule for %s because there are no sources.' % name
+    print 'Not generating checkstyle rule for %s because there are no sources.' % name
 
   # TODO add project config for intellij
   # project_config(