diff --git a/jstests/indexw.js b/jstests/indexw.js
new file mode 100644
index 0000000000000..326443400d12f
--- /dev/null
+++ b/jstests/indexw.js
@@ -0,0 +1,14 @@
+// Check that v0 keys are generated for v0 indexes SERVER-3375
+
+t = db.jstests_indexw;
+t.drop();
+
+t.save( {a:[]} );
+assert.eq( 1, t.count( {a:[]} ) );
+t.ensureIndex( {a:1} );
+assert.eq( 1, t.count( {a:[]} ) );
+t.dropIndexes();
+
+// The count result is incorrect - just checking here that v0 key generation is used.
+t.ensureIndex( {a:1}, {v:0} );
+assert.eq( 0, t.count( {a:[]} ) );