diff --git a/lib/node_modules/@stdlib/stats/meanwd/benchmark/benchmark.assign.js b/lib/node_modules/@stdlib/stats/meanwd/benchmark/benchmark.assign.js
index a0e3af24cf4a..8b9d080194b4 100644
--- a/lib/node_modules/@stdlib/stats/meanwd/benchmark/benchmark.assign.js
+++ b/lib/node_modules/@stdlib/stats/meanwd/benchmark/benchmark.assign.js
@@ -25,6 +25,7 @@ var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var pow = require( '@stdlib/math/base/special/pow' );
 var uniform = require( '@stdlib/random/array/uniform' );
 var zeros = require( '@stdlib/array/zeros' );
+var format = require( '@stdlib/string/format' );
 var ndarray = require( '@stdlib/ndarray/base/ctor' );
 var pkg = require( './../package.json' ).name;
 var meanwd = require( './../lib' );
@@ -104,7 +105,7 @@ function main() {
 	for ( i = min; i <= max; i++ ) {
 		len = pow( 10, i );
 		f = createBenchmark( len );
-		bench( pkg+':assign:dtype='+options.dtype+',len='+len, f );
+		bench( format( '%s:assign:dtype=%s,len=%d', pkg, options.dtype, len ), f );
 	}
 }
 
diff --git a/lib/node_modules/@stdlib/stats/meanwd/benchmark/benchmark.js b/lib/node_modules/@stdlib/stats/meanwd/benchmark/benchmark.js
index f5ef90960c18..e583c82e7a8f 100644
--- a/lib/node_modules/@stdlib/stats/meanwd/benchmark/benchmark.js
+++ b/lib/node_modules/@stdlib/stats/meanwd/benchmark/benchmark.js
@@ -24,6 +24,7 @@ var bench = require( '@stdlib/bench' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var pow = require( '@stdlib/math/base/special/pow' );
 var uniform = require( '@stdlib/random/array/uniform' );
+var format = require( '@stdlib/string/format' );
 var ndarray = require( '@stdlib/ndarray/base/ctor' );
 var pkg = require( './../package.json' ).name;
 var meanwd = require( './../lib' );
@@ -98,7 +99,7 @@ function main() {
 	for ( i = min; i <= max; i++ ) {
 		len = pow( 10, i );
 		f = createBenchmark( len );
-		bench( pkg+':dtype='+options.dtype+',len='+len, f );
+		bench( format( '%s:dtype=%s,len=%d', pkg, options.dtype, len ), f );
 	}
 }