diff --git a/validation-test/IDE/crashers_2/complete_repl_decl_conformance.swift b/validation-test/IDE/crashers_2/complete_repl_decl_conformance.swift
new file mode 100644
index 0000000000000..646b07cc094e3
--- /dev/null
+++ b/validation-test/IDE/crashers_2/complete_repl_decl_conformance.swift
@@ -0,0 +1,5 @@
+// TODO(SR-12076): Make this not crash.
+// RUN: not --crash %target-swift-ide-test -repl-code-completion -source-filename %s
+// REQUIRES: asserts
+
+struct Bar: