diff --git a/src/canvas/widgets/mem_graph.rs b/src/canvas/widgets/mem_graph.rs
index f069fd4b..e47a82f4 100644
--- a/src/canvas/widgets/mem_graph.rs
+++ b/src/canvas/widgets/mem_graph.rs
@@ -58,7 +58,7 @@ impl Painter {
                 }
                 #[cfg(not(target_os = "windows"))]
                 if let Some((label_percent, label_frac)) = &app_state.converted_data.cache_labels {
-                    let cache_label = format!("CCH:{}{}", label_percent, label_frac);
+                    let cache_label = format!("CHE:{}{}", label_percent, label_frac);
                     points.push(GraphData {
                         points: &app_state.converted_data.cache_data,
                         style: self.colours.cache_style,