diff --git a/ecmascript/parser/tests/typescript/issue-1806/case1/input.ts b/ecmascript/parser/tests/typescript/issue-1806/case1/input.ts
new file mode 100644
index 000000000000..a64b0bd8ebc4
--- /dev/null
+++ b/ecmascript/parser/tests/typescript/issue-1806/case1/input.ts
@@ -0,0 +1 @@
+0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002225073858507201
\ No newline at end of file