diff --git a/doc/push_relabel_max_flow.html b/doc/push_relabel_max_flow.html
index e8e37321..2a206086 100644
--- a/doc/push_relabel_max_flow.html
+++ b/doc/push_relabel_max_flow.html
@@ -75,7 +75,7 @@ href="./bibliography.html#goldberg85:_new_max_flow_algor">Goldberg</a>.
 
 <H3>Complexity</H3>
 
-The time complexity is <i>O(V^3)</i>.
+The time complexity is <i>O(V<sup>3</sup>)</i>.
 
 
 <H3>Where Defined</H3>