diff --git a/faiss/Index2Layer.cpp b/faiss/Index2Layer.cpp
index 219a96d20..f3b2eea18 100644
--- a/faiss/Index2Layer.cpp
+++ b/faiss/Index2Layer.cpp
@@ -106,7 +106,6 @@ void Index2Layer::train(idx_t n, const float* x) {
     is_trained = true;
 }
 
-
 void Index2Layer::search(
         idx_t /*n*/,
         const float* /*x*/,
@@ -116,7 +115,6 @@ void Index2Layer::search(
     FAISS_THROW_MSG("not implemented");
 }
 
-
 void Index2Layer::transfer_to_IVFPQ(IndexIVFPQ& other) const {
     FAISS_THROW_IF_NOT(other.nlist == q1.nlist);
     FAISS_THROW_IF_NOT(other.code_size == code_size_2);
diff --git a/faiss/IndexLSH.h b/faiss/IndexLSH.h
index bb0a412ac..626cef8ff 100644
--- a/faiss/IndexLSH.h
+++ b/faiss/IndexLSH.h
@@ -51,7 +51,6 @@ struct IndexLSH : IndexFlatCodes {
             float* distances,
             idx_t* labels) const override;
 
-
     /// transfer the thresholds to a pre-processing stage (and unset
     /// train_thresholds)
     void transfer_thresholds(LinearTransform* vt);
diff --git a/faiss/index_factory.cpp b/faiss/index_factory.cpp
index 5aec597ec..a3908f42c 100644
--- a/faiss/index_factory.cpp
+++ b/faiss/index_factory.cpp
@@ -557,7 +557,6 @@ std::unique_ptr<Index> index_factory_sub(
         description = sm[sm.size() - 1];
         vts.emplace_back(vt);
         d = vts.back()->d_out;
-
     }
 
     if (vts.size() > 0) {