diff --git a/packages/typescript-estree/README.md b/packages/typescript-estree/README.md
index 1d9a38d0fb3..54706cf47f9 100644
--- a/packages/typescript-estree/README.md
+++ b/packages/typescript-estree/README.md
@@ -61,7 +61,7 @@ interface ParseOptions {
   errorOnUnknownASTType?: boolean;
 
   /**
-   * The absolute path to the file being parsed.
+   * Absolute (or relative to `cwd`) path to the file being parsed.
    */
   filePath?: string;
 
@@ -159,7 +159,7 @@ interface ParseAndGenerateServicesOptions extends ParseOptions {
   extraFileExtensions?: string[];
 
   /**
-   * The absolute path to the file being parsed.
+   * Absolute (or relative to `tsconfigRootDir`) path to the file being parsed.
    * When `project` is provided, this is required, as it is used to fetch the file from the TypeScript compiler's cache.
    */
   filePath?: string;
diff --git a/packages/typescript-estree/src/parser-options.ts b/packages/typescript-estree/src/parser-options.ts
index 1cd8b4d5475..2317a683abf 100644
--- a/packages/typescript-estree/src/parser-options.ts
+++ b/packages/typescript-estree/src/parser-options.ts
@@ -65,7 +65,7 @@ export interface TSESTreeOptions {
   extraFileExtensions?: string[];
 
   /**
-   * The absolute path to the file being parsed.
+   * Absolute (or relative to `tsconfigRootDir`) path to the file being parsed.
    * When `project` is provided, this is required, as it is used to fetch the file from the TypeScript compiler's cache.
    */
   filePath?: string;