diff --git a/lib/node_modules/@stdlib/nlp/expand-acronyms/benchmark/benchmark.js b/lib/node_modules/@stdlib/nlp/expand-acronyms/benchmark/benchmark.js
index 02a6bb2e8005..7e3367f53170 100644
--- a/lib/node_modules/@stdlib/nlp/expand-acronyms/benchmark/benchmark.js
+++ b/lib/node_modules/@stdlib/nlp/expand-acronyms/benchmark/benchmark.js
@@ -23,6 +23,7 @@
 var bench = require( '@stdlib/bench' );
 var isString = require( '@stdlib/assert/is-string' ).isPrimitive;
 var mobyDick = require( '@stdlib/datasets/moby-dick' );
+var format = require( '@stdlib/string/format' );
 var pkg = require( './../package.json' ).name;
 var expandAcronyms = require( './../lib' );
 var ACRONYMS = require( './../lib/acronyms.json' );
@@ -51,7 +52,7 @@ bench( pkg, function benchmark( b ) {
 	b.end();
 });
 
-bench( pkg+'::long_text', function benchmark( b ) {
+bench( format( '%s::long_text', pkg ), function benchmark( b ) {
 	var text;
 	var str;
 	var out;
diff --git a/lib/node_modules/@stdlib/nlp/expand-contractions/benchmark/benchmark.js b/lib/node_modules/@stdlib/nlp/expand-contractions/benchmark/benchmark.js
index a880d0b10d38..c880be915593 100644
--- a/lib/node_modules/@stdlib/nlp/expand-contractions/benchmark/benchmark.js
+++ b/lib/node_modules/@stdlib/nlp/expand-contractions/benchmark/benchmark.js
@@ -23,6 +23,7 @@
 var bench = require( '@stdlib/bench' );
 var isString = require( '@stdlib/assert/is-string' ).isPrimitive;
 var mobyDick = require( '@stdlib/datasets/moby-dick' );
+var format = require( '@stdlib/string/format' );
 var pkg = require( './../package.json' ).name;
 var expandContractions = require( './../lib' );
 var CONTRACTIONS = require( './../lib/contractions.json' );
@@ -51,7 +52,7 @@ bench( pkg, function benchmark( b ) {
 	b.end();
 });
 
-bench( pkg+'::long_text', function benchmark( b ) {
+bench( format( '%s::long_text', pkg ), function benchmark( b ) {
 	var text;
 	var str;
 	var out;