diff --git a/tests/test_anime.py b/tests/test_anime.py
index d72dd77..ad067f9 100644
--- a/tests/test_anime.py
+++ b/tests/test_anime.py
@@ -8,5 +8,5 @@ class TestPlotlyAnimation:
     steps = 10
     plotly_anime = anime.PlotlyAnimation(state, steps)
     def test_frame_gen(self):
-        assert self.plotly_anime.frames.shape == (11,10,10)
+        assert self.plotly_anime.frames.shape == (10,10,10)
         assert len(self.plotly_anime.frame_gen()) == 2 * self.steps + 1
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