diff --git a/src/testdir/test_vim9_expr.vim b/src/testdir/test_vim9_expr.vim
index fabbd9b..312d633 100644
--- a/src/testdir/test_vim9_expr.vim
+++ b/src/testdir/test_vim9_expr.vim
@@ -781,6 +781,11 @@
 
   call CheckDefExecFailure("echo s:doesnt_exist", 'E121:')
   call CheckDefExecFailure("echo g:doesnt_exist", 'E121:')
+
+  call CheckDefExecFailure("let x = +g:astring", 'E1030:')
+  call CheckDefExecFailure("let x = +g:ablob", 'E974:')
+  call CheckDefExecFailure("let x = +g:alist", 'E745:')
+  call CheckDefExecFailure("let x = +g:adict", 'E728:')
 endfunc
 
 let g:Funcrefs = [function('add')]
diff --git a/src/testdir/test_vim9_script.vim b/src/testdir/test_vim9_script.vim
index 6ae4273..f7205b3 100644
--- a/src/testdir/test_vim9_script.vim
+++ b/src/testdir/test_vim9_script.vim
@@ -114,9 +114,16 @@
   return 123
 enddef
 
+let g:notNumber = 'string'
+
+def ReturnGlobal(): number
+  return g:notNumber
+enddef
+
 def Test_return_string()
   assert_equal('string', ReturnString())
   assert_equal(123, ReturnNumber())
+  assert_fails('call ReturnGlobal()', 'E1029: Expected number but got string')
 enddef
 
 func Increment()
diff --git a/src/version.c b/src/version.c
index 3cab8b0..8aca276 100644
--- a/src/version.c
+++ b/src/version.c
@@ -739,6 +739,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    292,
+/**/
     291,
 /**/
     290,