diff --git a/src/testdir/dumps/Test_map_expr_2.dump b/src/testdir/dumps/Test_map_expr_2.dump
new file mode 100644
index 0000000..270a233
--- /dev/null
+++ b/src/testdir/dumps/Test_map_expr_2.dump
@@ -0,0 +1,10 @@
+> +0&#ffffff0@74
+|~+0#4040ff13&| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+| +0#0000000&@56|0|,|0|-|1| @8|A|l@1| 
diff --git a/src/testdir/dumps/Test_map_expr_3.dump b/src/testdir/dumps/Test_map_expr_3.dump
new file mode 100644
index 0000000..6404e8c
--- /dev/null
+++ b/src/testdir/dumps/Test_map_expr_3.dump
@@ -0,0 +1,10 @@
+|~+0#4040ff13#ffffff0| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|:+0#0000000&|a|b|c| @70
+|E+0#ffffff16#e000002|r@1|o|r| |d|e|t|e|c|t|e|d| |w|h|i|l|e| |p|r|o|c|e|s@1|i|n|g| |f|u|n|c|t|i|o|n| |F|u|n|c|[|1|]|.@1|f|u|n|c|t|i|o|n| |F|u|n|c|:| +0#0000000#ffffff0@10
+|l+0#af5f00255&|i|n|e| @3|1|:| +0#0000000&@64
+|E+0#ffffff16#e000002|6|0|5|:| |E|x|c|e|p|t|i|o|n| |n|o|t| |c|a|u|g|h|t|:| |t|e|s|t| +0#0000000#ffffff0@42
+|:|a|b|c> @70
diff --git a/src/testdir/dumps/Test_map_expr_4.dump b/src/testdir/dumps/Test_map_expr_4.dump
new file mode 100644
index 0000000..270a233
--- /dev/null
+++ b/src/testdir/dumps/Test_map_expr_4.dump
@@ -0,0 +1,10 @@
+> +0&#ffffff0@74
+|~+0#4040ff13&| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+| +0#0000000&@56|0|,|0|-|1| @8|A|l@1| 
diff --git a/src/testdir/test_mapping.vim b/src/testdir/test_mapping.vim
index b9c9fa5..e18927c 100644
--- a/src/testdir/test_mapping.vim
+++ b/src/testdir/test_mapping.vim
@@ -549,6 +549,38 @@
   call delete('XtestExprMap')
 endfunc
 
+func Test_expr_map_error()
+  CheckScreendump
+
+  let lines =<< trim END
+      func Func()
+        throw 'test'
+        return ''
+      endfunc
+
+      nnoremap <expr> <F2> Func()
+      cnoremap <expr> <F2> Func()
+
+      call test_override('ui_delay', 10)
+  END
+  call writefile(lines, 'XtestExprMap')
+  let buf = RunVimInTerminal('-S XtestExprMap', #{rows: 10})
+  call TermWait(buf)
+  call term_sendkeys(buf, "\<F2>")
+  call TermWait(buf)
+  call term_sendkeys(buf, "\<CR>")
+  call VerifyScreenDump(buf, 'Test_map_expr_2', {})
+
+  call term_sendkeys(buf, ":abc\<F2>")
+  call VerifyScreenDump(buf, 'Test_map_expr_3', {})
+  call term_sendkeys(buf, "\<Esc>0")
+  call VerifyScreenDump(buf, 'Test_map_expr_4', {})
+
+  " clean up
+  call StopVimInTerminal(buf)
+  call delete('XtestExprMap')
+endfunc
+
 " Test for mapping errors
 func Test_map_error()
   call assert_fails('unmap', 'E474:')