diff --git a/cpp/include/raft/neighbors/cagra_types.hpp b/cpp/include/raft/neighbors/cagra_types.hpp
index 0f8f232620..4db08110b9 100644
--- a/cpp/include/raft/neighbors/cagra_types.hpp
+++ b/cpp/include/raft/neighbors/cagra_types.hpp
@@ -58,7 +58,7 @@ struct index_params : ann::index_params {
   size_t graph_degree = 64;
   /** ANN algorithm to build knn graph. */
   graph_build_algo build_algo = graph_build_algo::IVF_PQ;
-  /**Number of Iterations to run if building with NN_DESCENT*/
+  /** Number of Iterations to run if building with NN_DESCENT */
   size_t nn_descent_niter = 20;
 };