diff --git a/tests/cases/fourslash/completionListAfterSlash.ts b/tests/cases/fourslash/completionListAfterSlash.ts
new file mode 100644
index 00000000000..f9a0b69afdf
--- /dev/null
+++ b/tests/cases/fourslash/completionListAfterSlash.ts
@@ -0,0 +1,8 @@
+/// <reference path='fourslash.ts' />
+
+////var a = 0;
+////a/./**/
+
+goTo.marker();
+// should not crash
+verify.completionListIsEmpty();