diff --git a/.prettierignore b/.prettierignore
index 169137774..112dc9763 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -1,6 +1,9 @@
 **/.yarn/*
 
+# Ignore directories and files in 'tests/format'
 /tests/format/**/*.*
+# Unignore directories and 'format.test.js' file
+!/tests/format/**/
 !/tests/format/**/format.test.js
 /tests/integration/cli/
 /tests/integration/plugins/**/*.*
diff --git a/tests/format/flow-repo/esproposal_decorators.ignore/format.test.js b/tests/format/flow-repo/esproposal_decorators.ignore/format.test.js
index 34b3a8537..ce5204f18 100644
--- a/tests/format/flow-repo/esproposal_decorators.ignore/format.test.js
+++ b/tests/format/flow-repo/esproposal_decorators.ignore/format.test.js
@@ -1,5 +1,5 @@
 runFormatTest(import.meta, ["flow"], {
   errors: {
-    hermes:["test.js"],
+    hermes: ["test.js"],
   },
 });
diff --git a/tests/format/flow-repo/esproposal_decorators.warn/format.test.js b/tests/format/flow-repo/esproposal_decorators.warn/format.test.js
index c1ee18c7b..a96332ef8 100644
--- a/tests/format/flow-repo/esproposal_decorators.warn/format.test.js
+++ b/tests/format/flow-repo/esproposal_decorators.warn/format.test.js
@@ -1,2 +1 @@
-runFormatTest(import.meta, ["flow"], {errors: { hermes: ["test.js"] }
-});
+runFormatTest(import.meta, ["flow"], { errors: { hermes: ["test.js"] } });