diff --git a/src/dict.c b/src/dict.c
index 9c590064cc..30a15a6f07 100644
--- a/src/dict.c
+++ b/src/dict.c
@@ -418,6 +418,7 @@ dict_find(dict_T *d, char_u *key, int len)
 /*
  * Get a string item from a dictionary.
  * When "save" is TRUE allocate memory for it.
+ * When FALSE a shared buffer is used, can only be used once!
  * Returns NULL if the entry doesn't exist or out of memory.
  */
     char_u *
diff --git a/src/evalfunc.c b/src/evalfunc.c
index 00956612f8..dc0e630af8 100644
--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -9659,11 +9659,11 @@ f_setmatches(typval_T *argvars UNUSED, typval_T *rettv UNUSED)
 		}
 	    }
 
-	    group = get_dict_string(d, (char_u *)"group", FALSE);
+	    group = get_dict_string(d, (char_u *)"group", TRUE);
 	    priority = (int)get_dict_number(d, (char_u *)"priority");
 	    id = (int)get_dict_number(d, (char_u *)"id");
 	    conceal = dict_find(d, (char_u *)"conceal", -1) != NULL
-			      ? get_dict_string(d, (char_u *)"conceal", FALSE)
+			      ? get_dict_string(d, (char_u *)"conceal", TRUE)
 			      : NULL;
 	    if (i == 0)
 	    {
@@ -9677,6 +9677,8 @@ f_setmatches(typval_T *argvars UNUSED, typval_T *rettv UNUSED)
 		list_unref(s);
 		s = NULL;
 	    }
+	    vim_free(group);
+	    vim_free(conceal);
 
 	    li = li->li_next;
 	}
diff --git a/src/testdir/test_expr.vim b/src/testdir/test_expr.vim
index 0800039aee..557d74960f 100644
--- a/src/testdir/test_expr.vim
+++ b/src/testdir/test_expr.vim
@@ -194,3 +194,12 @@ func Test_funcref()
   let OneByRef = funcref('One')
   call assert_equal(2, OneByRef())
 endfunc
+
+func Test_setmatches()
+  hi def link 1 Comment
+  hi def link 2 PreProc
+  let set = [{"group": 1, "pattern": 2, "id": 3, "priority": 4, "conceal": 5}]
+  let exp = [{"group": '1', "pattern": '2', "id": 3, "priority": 4, "conceal": '5'}]
+  call setmatches(set)
+  call assert_equal(exp, getmatches())
+endfunc
diff --git a/src/version.c b/src/version.c
index 1c83d6e7b8..94e14bff86 100644
--- a/src/version.c
+++ b/src/version.c
@@ -763,6 +763,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2160,
 /**/
     2159,
 /**/