diff --git a/src/eval.c b/src/eval.c
index fc01006..0f306d4 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -7075,7 +7075,7 @@
 }
 
 /*
- * Add a list  entry to dictionary "d".
+ * Add a list entry to dictionary "d".
  * Returns FAIL when out of memory and when key already exists.
  */
     int
@@ -7097,6 +7097,7 @@
 	dictitem_free(item);
 	return FAIL;
     }
+    ++list->lv_refcount;
     return OK;
 }
 
diff --git a/src/testdir/Makefile b/src/testdir/Makefile
index 4951dc2..bdc2c28 100644
--- a/src/testdir/Makefile
+++ b/src/testdir/Makefile
@@ -44,7 +44,7 @@
 $(SCRIPTS) $(SCRIPTS_GUI): $(VIMPROG)
 
 clean:
-	-rm -rf *.out *.failed *.rej *.orig test.log tiny.vim small.vim mbyte.vim mzscheme.vim test.ok X* valgrind.pid* viminfo
+	-rm -rf *.out *.failed *.rej *.orig test.log tiny.vim small.vim mbyte.vim mzscheme.vim test.ok X* valgrind.* viminfo
 
 test1.out: test1.in
 	-rm -f $*.failed tiny.vim small.vim mbyte.vim mzscheme.vim test.ok X* viminfo
diff --git a/src/testdir/test61.in b/src/testdir/test61.in
index f9a1574..8883163 100644
--- a/src/testdir/test61.in
+++ b/src/testdir/test61.in
@@ -4,6 +4,10 @@
 Also tests :earlier and :later.
 
 STARTTEST
+:echo undotree().entries
+ENDTEST
+
+STARTTEST
 :" Delete three characters and undo
 Gx:set ul=100
 x:set ul=100
diff --git a/src/version.c b/src/version.c
index 3b50ffb..a1b3718 100644
--- a/src/version.c
+++ b/src/version.c
@@ -715,6 +715,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    5,
+/**/
     4,
 /**/
     3,