diff --git a/doc/metrics/pgr_betweennessCentrality.rst b/doc/metrics/pgr_betweennessCentrality.rst
index 92e0f93753..dfac101881 100644
--- a/doc/metrics/pgr_betweennessCentrality.rst
+++ b/doc/metrics/pgr_betweennessCentrality.rst
@@ -34,6 +34,7 @@ This implementation work for both directed and undirected graphs.
 
 - Running time:  :math:`\Theta(VE)` time 
 - Running space: :math:`\Theta(VE)` space.
+- Throws when there are no edges in the graph.
 
 Signatures
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