diff --git a/spine-cpp/spine-cpp/include/spine/SkeletonBounds.h b/spine-cpp/spine-cpp/include/spine/SkeletonBounds.h
index 8dc4cab51..5083e356f 100644
--- a/spine-cpp/spine-cpp/include/spine/SkeletonBounds.h
+++ b/spine-cpp/spine-cpp/include/spine/SkeletonBounds.h
@@ -65,7 +65,7 @@ namespace spine {
 		bool aabbintersectsSegment(float x1, float y1, float x2, float y2);
 
 		/// Returns true if the axis aligned bounding box intersects the axis aligned bounding box of the specified bounds.
-		bool aabbIntersectsSkeleton(SkeletonBounds bounds);
+		bool aabbIntersectsSkeleton(SkeletonBounds &bounds);
 
 		/// Returns true if the polygon contains the point.
 		bool containsPoint(Polygon *polygon, float x, float y);
diff --git a/spine-cpp/spine-cpp/src/spine/SkeletonBounds.cpp b/spine-cpp/spine-cpp/src/spine/SkeletonBounds.cpp
index 9f1e00cd8..a9decdedc 100644
--- a/spine-cpp/spine-cpp/src/spine/SkeletonBounds.cpp
+++ b/spine-cpp/spine-cpp/src/spine/SkeletonBounds.cpp
@@ -118,7 +118,7 @@ bool SkeletonBounds::aabbintersectsSegment(float x1, float y1, float x2, float y
 	return false;
 }
 
-bool SkeletonBounds::aabbIntersectsSkeleton(SkeletonBounds bounds) {
+bool SkeletonBounds::aabbIntersectsSkeleton(SkeletonBounds &bounds) {
 	return _minX < bounds._maxX && _maxX > bounds._minX && _minY < bounds._maxY && _maxY > bounds._minY;
 }