diff --git a/ml/kmeans.v b/ml/kmeans.v
index cc30f1968..9e869916a 100644
--- a/ml/kmeans.v
+++ b/ml/kmeans.v
@@ -120,6 +120,7 @@ pub fn (mut o Kmeans) compute_centroids() {
 }
 
 pub struct TrainConfig {
+pub:
 	epochs          int
 	tol_norm_change f64
 }
diff --git a/ml/knn.v b/ml/knn.v
index 6d95a0375..407cbfec0 100644
--- a/ml/knn.v
+++ b/ml/knn.v
@@ -109,9 +109,9 @@ pub fn (mut knn KNN) train() {
 
 // data needed for KNN.predict
 pub struct PredictConfig {
+pub:
 	max_iter int
 	k        int
-mut:
 	to_pred []f64
 }