diff --git a/src/eval.c b/src/eval.c
index 5069324..85f2092 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -21705,6 +21705,7 @@
 	/* Turn "dict.Func" into a partial for "Func" with "dict". */
 	if (pt != NULL)
 	{
+	    pt->pt_refcount = 1;
 	    pt->pt_dict = selfdict;
 	    selfdict = NULL;
 	    pt->pt_name = rettv->vval.v_string;
diff --git a/src/testdir/test_partial.vim b/src/testdir/test_partial.vim
index ddc85e0..acba887 100644
--- a/src/testdir/test_partial.vim
+++ b/src/testdir/test_partial.vim
@@ -68,3 +68,17 @@
 
   call assert_fails('call function(dict.MyFunc, ["bbb"], dict)', 'E924:')
 endfunc
+
+fun InnerCall(funcref)
+  return a:funcref
+endfu
+
+fun OuterCall()
+  let opt = { 'func' : function('sin') }
+  call InnerCall(opt.func)
+endfu
+
+func Test_function_in_dict()
+  call OuterCall()
+endfunc
+
diff --git a/src/version.c b/src/version.c
index e4c3412..cb29158 100644
--- a/src/version.c
+++ b/src/version.c
@@ -749,6 +749,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1580,
+/**/
     1579,
 /**/
     1578,