diff --git a/cpp/patchworkpp/include/patchwork/patchworkpp.h b/cpp/patchworkpp/include/patchwork/patchworkpp.h
index 6d43161..852af80 100644
--- a/cpp/patchworkpp/include/patchwork/patchworkpp.h
+++ b/cpp/patchworkpp/include/patchwork/patchworkpp.h
@@ -188,10 +188,10 @@ class PatchWorkpp {
 
   double d_;
 
-  Eigen::VectorXf normal_;
-  Eigen::VectorXf singular_values_;
+  Eigen::Vector3f normal_;
+  Eigen::Vector3f singular_values_;
   Eigen::Matrix3f cov_;
-  Eigen::VectorXf pc_mean_;
+  Eigen::Vector3f pc_mean_;
 
   vector<double> min_ranges_;
   vector<double> sector_sizes_;