diff --git a/internal/core/src/index/thirdparty/faiss/IndexIVFPQ.cpp b/internal/core/src/index/thirdparty/faiss/IndexIVFPQ.cpp
index 938af356d2..f698bf9b95 100644
--- a/internal/core/src/index/thirdparty/faiss/IndexIVFPQ.cpp
+++ b/internal/core/src/index/thirdparty/faiss/IndexIVFPQ.cpp
@@ -79,7 +79,7 @@ void IndexIVFPQ::train_residual_o (idx_t n, const float *x, float *residuals_2)
     ScopeDeleter<float> del_residuals;
     if (by_residual) {
         if(verbose) printf("computing residuals\n");
-        idx_t * assign = new idx_t [n]; // assignement to coarse centroids
+        idx_t * assign = new idx_t [n]; // assignment to coarse centroids
         ScopeDeleter<idx_t> del (assign);
         quantizer->assign (n, x, assign);
         float *residuals = new float [n * d];