diff --git a/CanlabCore/Visualization_functions/get_cluster_volume.m b/CanlabCore/Visualization_functions/get_cluster_volume.m
index e203e923..56dd36c9 100644
--- a/CanlabCore/Visualization_functions/get_cluster_volume.m
+++ b/CanlabCore/Visualization_functions/get_cluster_volume.m
@@ -34,8 +34,8 @@
 %----------------------------------------------------------------------------------
 % Prepare MNI volume data xMNI, yMNI, zMNI, and volMNI
 %----------------------------------------------------------------------------------
-rMin = min(clOut.XYZmm');
-rMax = max(clOut.XYZmm');
+rMin = min(clOut.XYZmm',[],1);
+rMax = max(clOut.XYZmm',[],1);
 voxMNI = clOut.voxSize;
 
 % make all voxMNI positive: Correct bug with negative x voxel size