diff --git a/lib/node_modules/@stdlib/math/array/special/abs/benchmark/benchmark.assign.js b/lib/node_modules/@stdlib/math/array/special/abs/benchmark/benchmark.assign.js
index 3f825b927d5d..0317864a55a2 100644
--- a/lib/node_modules/@stdlib/math/array/special/abs/benchmark/benchmark.assign.js
+++ b/lib/node_modules/@stdlib/math/array/special/abs/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 pkg = require( './../package.json' ).name;
 var abs = require( './../lib' );
 
@@ -100,7 +101,7 @@ function main() {
 	for ( i = min; i <= max; i++ ) {
 		len = pow( 10, i );
 		f = createBenchmark( len );
-		bench( pkg+':assign:len='+len, f );
+		bench( format( '%s:assign:len=%d', pkg, len ), f );
 	}
 }
 
diff --git a/lib/node_modules/@stdlib/math/array/special/abs/benchmark/benchmark.length.js b/lib/node_modules/@stdlib/math/array/special/abs/benchmark/benchmark.length.js
index 1b97660d6441..92049b9936bd 100644
--- a/lib/node_modules/@stdlib/math/array/special/abs/benchmark/benchmark.length.js
+++ b/lib/node_modules/@stdlib/math/array/special/abs/benchmark/benchmark.length.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 pkg = require( './../package.json' ).name;
 var abs = require( './../lib' );
 
@@ -95,7 +96,7 @@ 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 );
 	}
 }