diff --git a/lib/node_modules/@stdlib/math/base/special/log1pmx/test/test.js b/lib/node_modules/@stdlib/math/base/special/log1pmx/test/test.js
index 435d0840b85f..1e64b1c5426f 100644
--- a/lib/node_modules/@stdlib/math/base/special/log1pmx/test/test.js
+++ b/lib/node_modules/@stdlib/math/base/special/log1pmx/test/test.js
@@ -28,6 +28,8 @@ var log1p = require( '@stdlib/math/base/special/log1p' );
 var abs = require( '@stdlib/math/base/special/abs' );
 var pow = require( '@stdlib/math/base/special/pow' );
 var ln = require( '@stdlib/math/base/special/ln' );
+var PINF = require( '@stdlib/constants/float64/pinf' );
+var NINF = require( '@stdlib/constants/float64/ninf' );
 var log1pmx = require( './../lib' );
 
 
@@ -88,3 +90,18 @@ tape( 'the function returns a Taylor series expansion otherwise', function test(
 	}
 	t.end();
 });
+
+tape( 'the function handles special values', function test( t ) {
+	var v;
+
+	v = log1pmx( NaN );
+	t.strictEqual( isnan( v ), true, 'returns expected value' );
+
+	v = log1pmx( PINF );
+	t.strictEqual( isnan( v ), true, 'returns expected value' );
+
+	v = log1pmx( NINF );
+	t.strictEqual( isnan( v ), true, 'returns expected value' );
+
+	t.end();
+});