diff --git a/lib/node_modules/@stdlib/blas/base/drot/benchmark/benchmark.js b/lib/node_modules/@stdlib/blas/base/drot/benchmark/benchmark.js
index 0f9731626539..6c3937d8bba4 100644
--- a/lib/node_modules/@stdlib/blas/base/drot/benchmark/benchmark.js
+++ b/lib/node_modules/@stdlib/blas/base/drot/benchmark/benchmark.js
@@ -22,6 +22,7 @@
 
 var bench = require( '@stdlib/bench' );
 var uniform = require( '@stdlib/random/array/uniform' );
+var format = require( '@stdlib/string/format' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var pow = require( '@stdlib/math/base/special/pow' );
 var pkg = require( './../package.json' ).name;
@@ -96,7 +97,7 @@ 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/blas/base/drot/benchmark/benchmark.native.js b/lib/node_modules/@stdlib/blas/base/drot/benchmark/benchmark.native.js
index 2cebd15c3109..5c32cbbb4668 100644
--- a/lib/node_modules/@stdlib/blas/base/drot/benchmark/benchmark.native.js
+++ b/lib/node_modules/@stdlib/blas/base/drot/benchmark/benchmark.native.js
@@ -23,6 +23,7 @@
 var resolve = require( 'path' ).resolve;
 var bench = require( '@stdlib/bench' );
 var uniform = require( '@stdlib/random/array/uniform' );
+var format = require( '@stdlib/string/format' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var pow = require( '@stdlib/math/base/special/pow' );
 var tryRequire = require( '@stdlib/utils/try-require' );
@@ -101,7 +102,7 @@ function main() {
 	for ( i = min; i <= max; i++ ) {
 		len = pow( 10, i );
 		f = createBenchmark( len );
-		bench( pkg+'::native:len='+len, opts, f );
+		bench( format( '%s::native:len=%d', pkg, len ), opts, f );
 	}
 }
 
diff --git a/lib/node_modules/@stdlib/blas/base/drot/benchmark/benchmark.ndarray.js b/lib/node_modules/@stdlib/blas/base/drot/benchmark/benchmark.ndarray.js
index a67f074eeeb1..df02a280df6a 100644
--- a/lib/node_modules/@stdlib/blas/base/drot/benchmark/benchmark.ndarray.js
+++ b/lib/node_modules/@stdlib/blas/base/drot/benchmark/benchmark.ndarray.js
@@ -22,6 +22,7 @@
 
 var bench = require( '@stdlib/bench' );
 var uniform = require( '@stdlib/random/array/uniform' );
+var format = require( '@stdlib/string/format' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var pow = require( '@stdlib/math/base/special/pow' );
 var pkg = require( './../package.json' ).name;
@@ -96,7 +97,7 @@ 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 );
 	}
 }
 
diff --git a/lib/node_modules/@stdlib/blas/base/drot/benchmark/benchmark.ndarray.native.js b/lib/node_modules/@stdlib/blas/base/drot/benchmark/benchmark.ndarray.native.js
index e7df95c774e3..a0b2db377150 100644
--- a/lib/node_modules/@stdlib/blas/base/drot/benchmark/benchmark.ndarray.native.js
+++ b/lib/node_modules/@stdlib/blas/base/drot/benchmark/benchmark.ndarray.native.js
@@ -23,6 +23,7 @@
 var resolve = require( 'path' ).resolve;
 var bench = require( '@stdlib/bench' );
 var uniform = require( '@stdlib/random/array/uniform' );
+var format = require( '@stdlib/string/format' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var pow = require( '@stdlib/math/base/special/pow' );
 var tryRequire = require( '@stdlib/utils/try-require' );
@@ -101,7 +102,7 @@ function main() {
 	for ( i = min; i <= max; i++ ) {
 		len = pow( 10, i );
 		f = createBenchmark( len );
-		bench( pkg+'::native:ndarray:len='+len, opts, f );
+		bench( format( '%s::native:ndarray:len=%d', pkg, len ), opts, f );
 	}
 }