diff --git a/native_client/javascript/client.ts b/native_client/javascript/client.ts
index 53c9eac4..3e5f1305 100644
--- a/native_client/javascript/client.ts
+++ b/native_client/javascript/client.ts
@@ -31,6 +31,7 @@ parser.addArgument(['--audio'], {required: true, help: 'Path to the audio file t
 parser.addArgument(['--version'], {action: VersionAction, nargs: 0, help: 'Print version and exits'});
 parser.addArgument(['--extended'], {action: 'storeTrue', help: 'Output string from extended metadata'});
 parser.addArgument(['--stream'], {action: 'storeTrue', help: 'Use streaming code path (for tests)'});
+parser.addArgument(['--hot_words'], {help: 'Hot-words and their boosts. Word:Boost pairs are comma-separated'});
 let args = parser.parseArgs();
 
 function totalTime(hrtimeValue: number[]): string {
@@ -71,6 +72,14 @@ if (args['scorer']) {
   }
 }
 
+if (args['hot_words']) {
+	console.error('Adding hot-words %s', args['hot_words']);
+	for (let word_boost of args['hot_words'].split(',')) {
+		let word = word_boost.split(':');
+		model.addHotWord(word[0], parseFloat(word[1]));
+	}
+}
+
 const buffer = Fs.readFileSync(args['audio']);
 const result = Wav.decode(buffer);