diff --git a/lib/node_modules/@stdlib/stats/base/dists/geometric/variance/README.md b/lib/node_modules/@stdlib/stats/base/dists/geometric/variance/README.md
index 3127aa691ec5..8b2ad4d9bb58 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/geometric/variance/README.md
+++ b/lib/node_modules/@stdlib/stats/base/dists/geometric/variance/README.md
@@ -154,7 +154,7 @@ Returns the [variance][variance] of a [geometric][geometric-distribution] distri
 
 ```c
 double out = stdlib_base_dists_geometric_variance( 0.5 );
-// returns 2
+// returns 2.0
 ```
 
 The function accepts the following arguments:
diff --git a/lib/node_modules/@stdlib/stats/base/dists/geometric/variance/test/test.js b/lib/node_modules/@stdlib/stats/base/dists/geometric/variance/test/test.js
index 45c45e37c827..f1913dc3e3cc 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/geometric/variance/test/test.js
+++ b/lib/node_modules/@stdlib/stats/base/dists/geometric/variance/test/test.js
@@ -35,6 +35,11 @@ var data = require( './fixtures/julia/data.json' );
 
 
 // TESTS //
+tape( 'the function returns 2.0 when p = 0.5', function test( t ) {
+    var v = variance( 0.5 );
+    t.equal( v, 2.0, 'returns 2.0' );
+    t.end();
+});
 
 tape( 'main export is a function', function test( t ) {
 	t.ok( true, __filename );