diff --git a/sklearn/cluster/_bicluster.py b/sklearn/cluster/_bicluster.py
index a360802009f2c..c8b46fa38c6d1 100644
--- a/sklearn/cluster/_bicluster.py
+++ b/sklearn/cluster/_bicluster.py
@@ -385,7 +385,7 @@ class SpectralBiclustering(BaseSpectral):
         default is 'bistochastic'.
 
         .. warning::
-           if `method='log'`, the data must be sparse.
+           if `method='log'`, the data must not be sparse.
 
     n_components : int, default=6
         Number of singular vectors to check.