@@ -70,7 +70,7 @@ module.exports = function (args, opts) {
 		} else if (arg.substring(j, j + 3) === 'no-') {
 			name = arg.substring(j + 3);
 			if (strict && !~keys.indexOf(name)) {
-				return opts.unknown(name);
+				return opts.unknown(arg);
 			}
 			out[name] = false;
 		} else {
@@ -82,10 +82,10 @@ module.exports = function (args, opts) {
 			val = arg.substring(++idx) || (i+1 === len || (''+args[i+1]).charCodeAt(0) === 45 || args[++i]);
 			arr = (j === 2 ? [name] : name);
 
-			for (j=0; j < arr.length; j++) {
-				name = arr[j];
-				if (strict && !~keys.indexOf(name)) return opts.unknown(name);
-				toVal(out, name, (j + 1 < arr.length) || val, opts);
+			for (idx=0; idx < arr.length; idx++) {
+				name = arr[idx];
+				if (strict && !~keys.indexOf(name)) return opts.unknown('-'.repeat(j) + name);
+				toVal(out, name, (idx + 1 < arr.length) || val, opts);
 			}
 		}
 	}
Original file line number	Diff line number	Diff line change
`@@ -70,7 +70,7 @@ module.exports = function (args, opts) {`
`70`	`70`	`} else if (arg.substring(j, j + 3) === 'no-') {`
`71`	`71`	`name = arg.substring(j + 3);`
`72`	`72`	`if (strict && !~keys.indexOf(name)) {`
`73`		`- return opts.unknown(name);`
	`73`	`+ return opts.unknown(arg);`
`74`	`74`	`}`
`75`	`75`	`out[name] = false;`
`76`	`76`	`} else {`
`@@ -82,10 +82,10 @@ module.exports = function (args, opts) {`
`82`	`82`	`val = arg.substring(++idx) \|\| (i+1 === len \|\| (''+args[i+1]).charCodeAt(0) === 45 \|\| args[++i]);`
`83`	`83`	`arr = (j === 2 ? [name] : name);`
`84`	`84`
`85`		`- for (j=0; j < arr.length; j++) {`
`86`		`- name = arr[j];`
`87`		`- if (strict && !~keys.indexOf(name)) return opts.unknown(name);`
`88`		`- toVal(out, name, (j + 1 < arr.length) \|\| val, opts);`
	`85`	`+ for (idx=0; idx < arr.length; idx++) {`
	`86`	`+ name = arr[idx];`
	`87`	`+ if (strict && !~keys.indexOf(name)) return opts.unknown('-'.repeat(j) + name);`
	`88`	`+ toVal(out, name, (idx + 1 < arr.length) \|\| val, opts);`
`89`	`89`	`}`
`90`	`90`	`}`
`91`	`91`	`}`