diff --git a/lib/node_modules/@stdlib/string/left-pad/lib/main.js b/lib/node_modules/@stdlib/string/left-pad/lib/main.js
index 8af50523e7dc..54edbf659e50 100644
--- a/lib/node_modules/@stdlib/string/left-pad/lib/main.js
+++ b/lib/node_modules/@stdlib/string/left-pad/lib/main.js
@@ -67,7 +67,7 @@ function lpad( str, len, pad ) {
 			throw new TypeError( format( 'invalid argument. Third argument must be a string. Value: `%s`.', p ) );
 		}
 		if ( p.length === 0 ) {
-			throw new RangeError( 'invalid argument. Third argument must not be an empty string.' );
+			throw new RangeError( format( 'invalid argument. Third argument must not be an empty string.' ) );
 		}
 	} else {
 		p = ' ';
diff --git a/lib/node_modules/@stdlib/string/right-pad/lib/main.js b/lib/node_modules/@stdlib/string/right-pad/lib/main.js
index 05f5062cfa0a..2ebd9c83b372 100644
--- a/lib/node_modules/@stdlib/string/right-pad/lib/main.js
+++ b/lib/node_modules/@stdlib/string/right-pad/lib/main.js
@@ -67,7 +67,7 @@ function rpad( str, len, pad ) {
 			throw new TypeError( format( 'invalid argument. Third argument must be a string. Value: `%s`.', p ) );
 		}
 		if ( p.length === 0 ) {
-			throw new RangeError( 'invalid argument. Pad string must not be an empty string.' );
+			throw new RangeError( format( 'invalid argument. Pad string must not be an empty string.' ) );
 		}
 	} else {
 		p = ' ';