diff --git a/IPython/core/magics/execution.py b/IPython/core/magics/execution.py
index e06626c..249d2c6 100644
--- a/IPython/core/magics/execution.py
+++ b/IPython/core/magics/execution.py
@@ -611,7 +611,7 @@ python-profiler package from non-free.""")
                                 t_sys = t1[1] - t0[1]
                                 print "\nIPython CPU timings (estimated):"
                                 print "Total runs performed:", nruns
-                                print "  Times  : %10.2f    %10.2f" % ('Total', 'Per run')
+                                print "  Times  : %10s   %10s" % ('Total', 'Per run')
                                 print "  User   : %10.2f s, %10.2f s." % (t_usr, t_usr / nruns)
                                 print "  System : %10.2f s, %10.2f s." % (t_sys, t_sys / nruns)
                             twall1 = time.time()
diff --git a/IPython/core/tests/test_run.py b/IPython/core/tests/test_run.py
index d5edb86..50f6f23 100644
--- a/IPython/core/tests/test_run.py
+++ b/IPython/core/tests/test_run.py
@@ -248,3 +248,10 @@ tclass.py: deleting object: C-third
         na = os.path.join(mydir, 'nonascii.py')
         _ip.magic('run "%s"' % na)
         tt.assert_equals(_ip.user_ns['u'], u'Ўт№Ф')
+
+    def test_run_formatting(self):
+        """ Test that %run -t -N<N> does not raise a TypeError for N > 1."""
+        src = "pass"
+        self.mktmp(src)
+        _ip.magic('run -t -N 1 %s' % self.fname)
+        _ip.magic('run -t -N 10 %s' % self.fname)