diff --git a/src/components/FlowMap.tsx b/src/components/FlowMap.tsx
index f4fe62a..bc98c6a 100644
--- a/src/components/FlowMap.tsx
+++ b/src/components/FlowMap.tsx
@@ -330,7 +330,7 @@ export function FlowMap({ arcs, focusCity, onCityClick }: FlowMapProps) {
                 style={{ cursor: 'default' }}
               >
                 {/* Zone de hit invisible plus large */}
-                <path d={a.path} fill="none" stroke="transparent" strokeWidth={Math.max(4, a.strokeW + 2)} />
+                <path d={a.path} fill="none" stroke="transparent" strokeWidth={Math.max(2, a.strokeW)} />
                 <path d={a.path} fill="none" stroke={a.stroke} strokeWidth={a.strokeW} strokeLinecap="round" />
                 <polygon points={a.arrowPts} fill={a.arrowFill} />
               </g>