diff --git a/src/tests/test-zoom.c b/src/tests/test-zoom.c
index a466c46e..0881ab67 100644
--- a/src/tests/test-zoom.c
+++ b/src/tests/test-zoom.c
@@ -8,15 +8,15 @@ test_zoom_manager (void)
   zoom = sysprof_zoom_manager_new ();
   g_assert_cmpfloat (1.0, ==, sysprof_zoom_manager_get_zoom (zoom));
   sysprof_zoom_manager_zoom_in (zoom);
-  g_assert_cmpfloat (1.1, ==, sysprof_zoom_manager_get_zoom (zoom));
+  g_assert_cmpfloat (1.5, ==, sysprof_zoom_manager_get_zoom (zoom));
   sysprof_zoom_manager_zoom_in (zoom);
-  g_assert_cmpfloat (1.2, ==, sysprof_zoom_manager_get_zoom (zoom));
+  g_assert_cmpfloat (2.0, ==, sysprof_zoom_manager_get_zoom (zoom));
   sysprof_zoom_manager_zoom_in (zoom);
-  g_assert_cmpfloat (1.33, ==, sysprof_zoom_manager_get_zoom (zoom));
+  g_assert_cmpfloat (2.5, ==, sysprof_zoom_manager_get_zoom (zoom));
   sysprof_zoom_manager_zoom_out (zoom);
-  g_assert_cmpfloat (1.2, ==, sysprof_zoom_manager_get_zoom (zoom));
+  g_assert_cmpfloat (2.0, ==, sysprof_zoom_manager_get_zoom (zoom));
   sysprof_zoom_manager_zoom_out (zoom);
-  g_assert_cmpfloat (1.1, ==, sysprof_zoom_manager_get_zoom (zoom));
+  g_assert_cmpfloat (1.5, ==, sysprof_zoom_manager_get_zoom (zoom));
   sysprof_zoom_manager_zoom_out (zoom);
   g_assert_cmpfloat (1.0, ==, sysprof_zoom_manager_get_zoom (zoom));
   sysprof_zoom_manager_zoom_out (zoom);