diff --git a/src/hooks/roofcover/useMovementSetting.js b/src/hooks/roofcover/useMovementSetting.js
index 2525cdf6..795086fb 100644
--- a/src/hooks/roofcover/useMovementSetting.js
+++ b/src/hooks/roofcover/useMovementSetting.js
@@ -575,7 +575,19 @@ export function useMovementSetting(id) {
       targetBaseLines.push({ line: target, distance: 0 })
     }
 
-    targetBaseLines.sort((a, b) => a.distance - b.distance)
+    // Remove duplicate lines
+    const uniqueLines = new Map();
+    targetBaseLines = targetBaseLines.filter(item => {
+      const key = `${item.line.x1},${item.line.y1},${item.line.x2},${item.line.y2}`;
+      if (!uniqueLines.has(key)) {
+        uniqueLines.set(key, true);
+        return true;
+      }
+      return false;
+    });
+
+    // Sort by distance
+    targetBaseLines.sort((a, b) => a.distance - b.distance);
     targetBaseLines = targetBaseLines.filter((line) => line.distance === targetBaseLines[0].distance)
 
     if (isGableRoof) {