diff --git a/src/vs/platform/environment/node/argv.ts b/src/vs/platform/environment/node/argv.ts
index 33a2671982acc8ad032c675a71bd113bfd49f89d..66e23f8ca6556b7bd36437fced58d1aa8ceb3986 100644
--- a/src/vs/platform/environment/node/argv.ts
+++ b/src/vs/platform/environment/node/argv.ts
@@ -181,7 +181,7 @@ export function parseArgs<T>(args: string[], options: OptionDescriptions<T>, err
 			delete parsedArgs[o.deprecates];
 		}
 
-		if (val) {
+		if (typeof val !== "undefined") {
 			if (o.type === 'string[]') {
 				if (val && !Array.isArray(val)) {
 					val = [val];