diff --git a/src/languages/json-source-code.js b/src/languages/json-source-code.js
index df92569..4830625 100644
--- a/src/languages/json-source-code.js
+++ b/src/languages/json-source-code.js
@@ -21,7 +21,7 @@ import {
 
 /**
  * @import { DocumentNode, AnyNode, Token } from "@humanwhocodes/momoa";
- * @import { SourceLocation, FileProblem, DirectiveType, RulesConfig } from "@eslint/core";
+ * @import { FileProblem, DirectiveType, RulesConfig } from "@eslint/core";
  * @import { JSONSyntaxElement } from "../types.ts";
  * @import { JSONLanguageOptions } from "./json-language.js";
  */
@@ -248,13 +248,13 @@ export class JSONSourceCode extends TextSourceCodeBase {
 	/**
 	 * Returns inline rule configurations along with any problems
 	 * encountered while parsing the configurations.
-	 * @returns {{problems:Array<FileProblem>,configs:Array<{config:{rules:RulesConfig},loc:SourceLocation}>}} Information
+	 * @returns {{problems:Array<FileProblem>,configs:Array<{config:{rules:RulesConfig},loc:JSONSyntaxElement['loc']}>}} Information
 	 *      that ESLint needs to further process the rule configurations.
 	 */
 	applyInlineConfig() {
 		/** @type {Array<FileProblem>} */
 		const problems = [];
-		/** @type {Array<{config:{rules:RulesConfig},loc:SourceLocation}>} */
+		/** @type {Array<{config:{rules:RulesConfig},loc:JSONSyntaxElement['loc']}>} */
 		const configs = [];
 
 		this.getInlineConfigNodes().forEach(comment => {
diff --git a/tests/types/types.test.ts b/tests/types/types.test.ts
index f9b9fa0..e84a1ae 100644
--- a/tests/types/types.test.ts
+++ b/tests/types/types.test.ts
@@ -43,6 +43,18 @@ json.configs.recommended.plugins satisfies object;
 	null as AssertAllNamesIn<RecommendedRuleName, RuleName>;
 }
 
+{
+	type ApplyInlineConfigLoc = ReturnType<
+		JSONSourceCode["applyInlineConfig"]
+	>["configs"][0]["loc"];
+
+	// Check that `applyInlineConfig`'s return type includes correct `loc` structure.
+	const loc: ApplyInlineConfigLoc = {
+		start: { line: 1, column: 1, offset: 0 },
+		end: { line: 1, column: 1, offset: 0 },
+	};
+}
+
 // Check that types are imported correctly from `@humanwhocodes/momoa`.
 ({
 	start: { line: 1, column: 1, offset: 1 },
@@ -80,6 +92,10 @@ json.configs.recommended.plugins satisfies object;
 			sourceCode.getParent(node) satisfies AnyNode | undefined;
 			sourceCode.getAncestors(node) satisfies JSONSyntaxElement[];
 			sourceCode.getText(node) satisfies string;
+			sourceCode.applyInlineConfig().configs[0].loc.start
+				.offset satisfies JSONSyntaxElement["loc"]["start"]["offset"];
+			sourceCode.applyInlineConfig().configs[0].loc.end
+				.offset satisfies JSONSyntaxElement["loc"]["end"]["offset"];
 		}
 
 		return {