diff --git a/src/app.html b/src/app.html
index ea831d1..935dc22 100644
--- a/src/app.html
+++ b/src/app.html
@@ -20,9 +20,13 @@
 			trackLinks: true,
 			accurateTrackBounce: true,
 			webvisor: true,
-			userParams: {
-				university_test_group: Math.random() > .5 ? 'a' : 'b'
-			}
+		});
+
+
+		ym(88895893, "getClientID", function (clientID) {
+			ym(88895893, 'userParams', {
+				university_test_group: clientID % 2 === 0 ? 'a' : 'b'
+			});
 		});
 	</script>
 	<noscript>