diff --git a/src/mosaic/__main__.py b/src/mosaic/__main__.py
index 42e7fec..50d6640 100644
--- a/src/mosaic/__main__.py
+++ b/src/mosaic/__main__.py
@@ -332,7 +332,7 @@ def clustering(
         mat = clust.matrix_.astype(np.float64)
         mat[np.diag_indices_from(mat)] = np.nan
         im = ax.pcolormesh(
-            mat, snap=True, vim=0, vmax=np.nanmax(mat),
+            mat, snap=True, vmin=0, vmax=np.nanmax(mat),
         )
 
         ticks = np.array([0, *clust.ticks_[: -1]]) - 0.5