diff --git a/lib/node_modules/@stdlib/number/float32/base/signbit/benchmark/benchmark.js b/lib/node_modules/@stdlib/number/float32/base/signbit/benchmark/benchmark.js
index e8d424290301..75364a56387e 100644
--- a/lib/node_modules/@stdlib/number/float32/base/signbit/benchmark/benchmark.js
+++ b/lib/node_modules/@stdlib/number/float32/base/signbit/benchmark/benchmark.js
@@ -39,7 +39,7 @@ bench( pkg, function benchmark( b ) {
 	for ( i = 0; i < b.iterations; i++ ) {
 		x = ( randu()*1.0e7 ) - 5.0e6;
 		y = signbitf( toFloat32( x ) );
-		if ( typeof bool !== 'boolean' ) {
+		if ( typeof y !== 'boolean' ) {
 			b.fail( 'should return a boolean' );
 		}
 	}