diff --git a/source/_lovelace/history-graph.markdown b/source/_lovelace/history-graph.markdown
index 242213fe875..65944163df1 100644
--- a/source/_lovelace/history-graph.markdown
+++ b/source/_lovelace/history-graph.markdown
@@ -14,12 +14,12 @@ History graph is a basic card, allowing you to display a graph for each of the e
 
 <p class='img'>
 <img src='/images/lovelace/lovelace_history_graph.png' alt='Screenshot of the history graph card for entities without a unit_of_measurement'>
-Screenshot of the history graph card, when no `unit_of_measurement` is defined.
+Screenshot of the history graph card, when the sensor has no `unit_of_measurement` defined.
 </p>
 
 <p class='img'>
 <img src='/images/lovelace/lovelace_history_graph_lines.png' alt='Screenshot of the history graph card for entities with a unit_of_measurement'>
-Screenshot of the history graph card, when a `unit_of_measurement` is defined.
+Screenshot of the history graph card, when the sensor has a `unit_of_measurement` defined.
 </p>
 
 {% configuration %}