diff --git a/tests/cases/fourslash/underscoreTypings1.ts b/tests/cases/fourslash/underscoreTypings01.ts
similarity index 100%
rename from tests/cases/fourslash/underscoreTypings1.ts
rename to tests/cases/fourslash/underscoreTypings01.ts
diff --git a/tests/cases/fourslash/underscoreTyping1.ts b/tests/cases/fourslash/underscoreTypings02.ts
similarity index 100%
rename from tests/cases/fourslash/underscoreTyping1.ts
rename to tests/cases/fourslash/underscoreTypings02.ts