diff --git a/lib/constants.js b/lib/constants.js
index 570f9016..634a6217 100644
--- a/lib/constants.js
+++ b/lib/constants.js
@@ -125,7 +125,7 @@ const CONFIG_FILES = [
 	`${MODULE_NAME}.config.cjs`
 ];
 
-const TSCONFIG_DEFFAULTS = {
+const TSCONFIG_DEFAULTS = {
 	compilerOptions: {
 		target: 'es2018',
 		newLine: 'lf',
@@ -148,6 +148,6 @@ module.exports = {
 	MODULE_NAME,
 	CONFIG_FILES,
 	MERGE_OPTIONS_CONCAT,
-	TSCONFIG_DEFFAULTS,
+	TSCONFIG_DEFAULTS,
 	CACHE_DIR_NAME
 };
diff --git a/lib/options-manager.js b/lib/options-manager.js
index 2f46186a..c53d4991 100644
--- a/lib/options-manager.js
+++ b/lib/options-manager.js
@@ -40,7 +40,7 @@ const {
 	MODULE_NAME,
 	CONFIG_FILES,
 	MERGE_OPTIONS_CONCAT,
-	TSCONFIG_DEFFAULTS,
+	TSCONFIG_DEFAULTS,
 	CACHE_DIR_NAME
 } = require('./constants');
 
@@ -225,7 +225,7 @@ const makeTSConfig = (tsConfig, tsConfigPath, files) => {
 		config.extends = tsConfigPath;
 		config.include = arrify(tsConfig.include).map(pattern => toAbsoluteGlob(pattern, {cwd: path.dirname(tsConfigPath)}));
 	} else {
-		Object.assign(config, TSCONFIG_DEFFAULTS);
+		Object.assign(config, TSCONFIG_DEFAULTS);
 	}
 
 	return config;