diff --git a/pavelib/tests.py b/pavelib/tests.py
index 3e665def77..11e82d9e5c 100644
--- a/pavelib/tests.py
+++ b/pavelib/tests.py
@@ -3,7 +3,7 @@ Unit test tasks
 """
 import os
 import sys
-from paver.easy import sh, task, cmdopts, needs
+from paver.easy import sh, task, cmdopts, needs, call_task
 from pavelib.utils.test import suites
 from pavelib.utils.envs import Env
 from optparse import make_option
@@ -204,6 +204,21 @@ def coverage(options):
                 dir=directory
             ))
 
+
+    call_task('diff_coverage', options=dict(options))
+
+
+@task
+@needs('pavelib.prereqs.install_prereqs')
+@cmdopts([
+    ("compare_branch=", "b", "Branch to compare against, defaults to origin/master"),
+])
+def diff_coverage(options):
+    """
+    Build the diff coverage reports
+    """
+    compare_branch = getattr(options, 'compare_branch', 'origin/master')
+
     # Find all coverage XML files (both Python and JavaScript)
     xml_reports = []
 
diff --git a/scripts/jenkins-report.sh b/scripts/jenkins-report.sh
index a0f436b56a..85bc3d1b79 100755
--- a/scripts/jenkins-report.sh
+++ b/scripts/jenkins-report.sh
@@ -2,7 +2,7 @@
 source scripts/jenkins-common.sh
 
 # Run coverage again to get the diff coverage report
-paver coverage
+paver diff_coverage
 
 # JUnit test reporter will fail the build
 # if it thinks test results are old