diff --git a/internal/core/src/index/thirdparty/faiss/impl/ProductQuantizer.h b/internal/core/src/index/thirdparty/faiss/impl/ProductQuantizer.h
index 6364be4eae..d8d8bbb0b4 100644
--- a/internal/core/src/index/thirdparty/faiss/impl/ProductQuantizer.h
+++ b/internal/core/src/index/thirdparty/faiss/impl/ProductQuantizer.h
@@ -38,7 +38,7 @@ struct ProductQuantizer {
     enum train_type_t {
         Train_default,
         Train_hot_start,   ///< the centroids are already initialized
-        Train_shared,      ///< share dictionary accross PQ segments
+        Train_shared,      ///< share dictionary across PQ segments
         Train_hypercube,   ///< intialize centroids with nbits-D hypercube
         Train_hypercube_pca,   ///< intialize centroids with nbits-D hypercube
     };