diff --git a/matlab/+gtsam/VisualISAMInitialize.m b/matlab/+gtsam/VisualISAMInitialize.m
index 1e408d3d9..b29288fdf 100644
--- a/matlab/+gtsam/VisualISAMInitialize.m
+++ b/matlab/+gtsam/VisualISAMInitialize.m
@@ -50,7 +50,7 @@ for i=1:2
             initialEstimates.insert(jj, truth.points{j});
         end
         if options.pointPriors % add point priors
-            newFactors.add(priorFactorPoint3(jj, truth.points{j}, noiseModels.point));
+            newFactors.add(PriorFactorPoint3(jj, truth.points{j}, noiseModels.point));
         end
     end
 end