diff --git a/lib/node_modules/@stdlib/lapack/base/crot/benchmark/benchmark.js b/lib/node_modules/@stdlib/lapack/base/crot/benchmark/benchmark.js
index e502a0377f71..06af71c49ecd 100644
--- a/lib/node_modules/@stdlib/lapack/base/crot/benchmark/benchmark.js
+++ b/lib/node_modules/@stdlib/lapack/base/crot/benchmark/benchmark.js
@@ -27,6 +27,7 @@ var pow = require( '@stdlib/math/base/special/pow' );
 var Complex64Array = require( '@stdlib/array/complex64' );
 var Complex64 = require( '@stdlib/complex/float32/ctor' );
 var reinterpret = require( '@stdlib/strided/base/reinterpret-complex64' );
+var format = require( '@stdlib/string/format' );
 var pkg = require( './../package.json' ).name;
 var crot = require( './../lib/crot.js' );
 
@@ -107,7 +108,7 @@ function main() {
 	for ( i = min; i <= max; i++ ) {
 		len = pow( 10, i );
 		f = createBenchmark( len );
-		bench( pkg+':len='+len, f );
+		bench( format( '%s:len=%d', pkg, len ), f );
 	}
 }
 
diff --git a/lib/node_modules/@stdlib/lapack/base/crot/benchmark/benchmark.ndarray.js b/lib/node_modules/@stdlib/lapack/base/crot/benchmark/benchmark.ndarray.js
index e28837bec023..37113e0642ec 100644
--- a/lib/node_modules/@stdlib/lapack/base/crot/benchmark/benchmark.ndarray.js
+++ b/lib/node_modules/@stdlib/lapack/base/crot/benchmark/benchmark.ndarray.js
@@ -27,6 +27,7 @@ var pow = require( '@stdlib/math/base/special/pow' );
 var Complex64Array = require( '@stdlib/array/complex64' );
 var Complex64 = require( '@stdlib/complex/float32/ctor' );
 var reinterpret = require( '@stdlib/strided/base/reinterpret-complex64' );
+var format = require( '@stdlib/string/format' );
 var pkg = require( './../package.json' ).name;
 var crot = require( './../lib/ndarray.js' );
 
@@ -107,7 +108,7 @@ function main() {
 	for ( i = min; i <= max; i++ ) {
 		len = pow( 10, i );
 		f = createBenchmark( len );
-		bench( pkg+':ndarray:len='+len, f );
+		bench( format( '%s:ndarray:len=%d', pkg, len ), f );
 	}
 }