diff --git a/src/sofa/collisionAlgorithm/DataDetectionOutput.h b/src/sofa/collisionAlgorithm/DataDetectionOutput.h
index d0a42451..57080b6d 100644
--- a/src/sofa/collisionAlgorithm/DataDetectionOutput.h
+++ b/src/sofa/collisionAlgorithm/DataDetectionOutput.h
@@ -34,7 +34,7 @@ class DetectionOutput {
     }
 
     typename sofa::type::vector<PairDetection>::const_iterator end() const {
-        return m_output.begin();
+        return m_output.end();
     }
 
     unsigned size() const {