diff --git a/polygerrit-ui/app/elements/diff/gr-diff-builder/token-highlight-layer.ts b/polygerrit-ui/app/elements/diff/gr-diff-builder/token-highlight-layer.ts
index 54b2450f..6b1294a 100644
--- a/polygerrit-ui/app/elements/diff/gr-diff-builder/token-highlight-layer.ts
+++ b/polygerrit-ui/app/elements/diff/gr-diff-builder/token-highlight-layer.ts
@@ -39,7 +39,7 @@
 /** CSS class for the currently hovered token. */
 const CSS_HIGHLIGHT = 'token-highlight';
 
-export const HOVER_DELAY_MS = 200;
+export const HOVER_DELAY_MS = 500;
 
 const LINE_LENGTH_LIMIT = 500;