diff --git a/mercurial/profiling.py b/mercurial/profiling.py
--- a/mercurial/profiling.py
+++ b/mercurial/profiling.py
@@ -213,14 +213,13 @@ class profile(object):
         if self._profiler is None:
             return
         self._profiler.__exit__(exception_type, exception_value, traceback)
-        if self._output:
-            if self._output == 'blackbox':
-                val = 'Profile:\n%s' % self._fp.getvalue()
-                # ui.log treats the input as a format string,
-                # so we need to escape any % signs.
-                val = val.replace('%', '%%')
-                self._ui.log('profile', val)
-            self._closefp()
+        if self._output == 'blackbox':
+            val = 'Profile:\n%s' % self._fp.getvalue()
+            # ui.log treats the input as a format string,
+            # so we need to escape any % signs.
+            val = val.replace('%', '%%')
+            self._ui.log('profile', val)
+        self._closefp()
 
     def _closefp(self):
         if self._fpdoclose and self._fp is not None: