diff --git a/hgext/mq.py b/hgext/mq.py
--- a/hgext/mq.py
+++ b/hgext/mq.py
@@ -756,7 +756,7 @@ class queue:
                     self.series_dirty = 1
                     self.applied_dirty = 1
                     if msg:
-                        msg = msg + "\n"
+                        msg = msg + "\n\n"
                         p.write(msg)
                     if commitfiles:
                         diffopts = self.diffopts()
diff --git a/tests/test-mq-header-date.out b/tests/test-mq-header-date.out
--- a/tests/test-mq-header-date.out
+++ b/tests/test-mq-header-date.out
@@ -48,6 +48,7 @@ Now at: 1.patch
 # Date 6 0
 
 Three
+
 1: Three - test - 6.00
 0: [mq]: 1.patch - test - 4.00
 ==== qref
diff --git a/tests/test-mq-header-from.out b/tests/test-mq-header-from.out
--- a/tests/test-mq-header-from.out
+++ b/tests/test-mq-header-from.out
@@ -46,6 +46,7 @@ 0: [mq]: 1.patch - mary
 From: test
 
 Three
+
 2: Three - test
 1: [mq]: 2.patch - jane
 0: [mq]: 1.patch - mary
diff --git a/tests/test-mq-qnew.out b/tests/test-mq-qnew.out
--- a/tests/test-mq-qnew.out
+++ b/tests/test-mq-qnew.out
@@ -15,6 +15,7 @@ A test.patch
 abort: missing: No such file or directory
 % qnew -m
 foo bar
+
 % qnew twice
 abort: patch "first.patch" already exists
 abort: patch "first.patch" already exists