diff --git a/cpp/vote3_atomic_aabb.cuh b/cpp/vote3_atomic_aabb.cuh
index 25d263f..763eba6 100644
--- a/cpp/vote3_atomic_aabb.cuh
+++ b/cpp/vote3_atomic_aabb.cuh
@@ -50,7 +50,7 @@
 			float step = 360.0/n;
 			stim::circle<float>  cir(center, d, norm);
 			stim::aabb3<int> bb(xi,yi,zi);
-			bb.insert(xc,yc,zc);
+			bb.insert((int)xc, (int)yc, (int)zc);
 			for(float j = 0; j <360.0; j += step){
 				stim::vec3<float> out = cir.p(j);
 				bb.insert(out[0], out[1], out[2]);
--
libgit2 0.21.4