diff --git a/ezyrb/database.py b/ezyrb/database.py
index 5a2bf6b..8be5ddd 100644
--- a/ezyrb/database.py
+++ b/ezyrb/database.py
@@ -131,7 +131,7 @@ def __len__(self):
     def __str__(self):
         """Print minimal info about the Database"""
         s = "Database with {} snapshots and {} parameters".format(
-            self.snapshots_matrix.shape[1], self.parameters_matrix.shape[1]
+            self.snapshots_matrix.shape[0], self.parameters_matrix.shape[1]
         )
         return s