diff --git a/packages/mermaid-flowchart-elk/src/flowRenderer-elk.js b/packages/mermaid-flowchart-elk/src/flowRenderer-elk.js
index 7c84a8efb..0becd1083 100644
--- a/packages/mermaid-flowchart-elk/src/flowRenderer-elk.js
+++ b/packages/mermaid-flowchart-elk/src/flowRenderer-elk.js
@@ -445,6 +445,7 @@ export const addEdges = function (edges, diagObj, graph, svg) {
     edgeData.arrowTypeStart = 'arrow_open';
     edgeData.arrowTypeEnd = 'arrow_open';
 
+    // eslint-disable no-fallthrough
     switch (edge.type) {
       // biome-ignore lint/suspicious/noFallthroughSwitchClause: <explanation>
       case 'double_arrow_cross':
diff --git a/packages/mermaid/src/diagrams/flowchart/flowRenderer-v2.js b/packages/mermaid/src/diagrams/flowchart/flowRenderer-v2.js
index 760196019..c926b1da2 100644
--- a/packages/mermaid/src/diagrams/flowchart/flowRenderer-v2.js
+++ b/packages/mermaid/src/diagrams/flowchart/flowRenderer-v2.js
@@ -244,6 +244,7 @@ export const addEdges = async function (edges, g, diagObj) {
     edgeData.arrowTypeStart = 'arrow_open';
     edgeData.arrowTypeEnd = 'arrow_open';
 
+    // eslint-disable no-fallthrough
     switch (edge.type) {
       // biome-ignore lint/suspicious/noFallthroughSwitchClause: <explanation>
       case 'double_arrow_cross':