diff --git a/src/eval.c b/src/eval.c
index 359956b..590834f 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -12993,7 +12993,8 @@
     char_u	*pat = get_tv_string_chk(&argvars[0]);
 
     rettv->v_type = VAR_STRING;
-    rettv->vval.v_string = file_pat_to_reg_pat(pat, NULL, NULL, FALSE);
+    rettv->vval.v_string = (pat == NULL)
+			 ? NULL : file_pat_to_reg_pat(pat, NULL, NULL, FALSE);
 }
 
 /*
diff --git a/src/testdir/test_alot.vim b/src/testdir/test_alot.vim
index aceb073..9745433 100644
--- a/src/testdir/test_alot.vim
+++ b/src/testdir/test_alot.vim
@@ -5,6 +5,7 @@
 source test_cursor_func.vim
 source test_delete.vim
 source test_expand.vim
+source test_glob2regpat.vim
 source test_json.vim
 source test_lispwords.vim
 source test_menu.vim
diff --git a/src/version.c b/src/version.c
index 073f551..ee6ac48 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1180,
+/**/
     1179,
 /**/
     1178,