diff --git a/examples/cvector-generator/pca.hpp b/examples/cvector-generator/pca.hpp
index 4fb82db17..36eadaac2 100644
--- a/examples/cvector-generator/pca.hpp
+++ b/examples/cvector-generator/pca.hpp
@@ -64,7 +64,6 @@ struct pca_model {
     struct ggml_tensor * dev_eigenvector;
 
     pca_model(struct ggml_tensor * t_input) {
-// TODO: enable GPU support when support for GGML_OP_SQRT is added
 #ifdef GGML_USE_CUDA
         fprintf(stderr, "%s: using CUDA backend\n", __func__);
         backend = ggml_backend_cuda_init(0); // init device 0
@@ -73,6 +72,7 @@ struct pca_model {
         }
 #endif
 
+// TODO: enable Metal support when support for GGML_OP_SQRT is added
 // #ifdef GGML_USE_METAL
 //         fprintf(stderr, "%s: using Metal backend\n", __func__);
 //         backend = ggml_backend_metal_init();