diff --git a/src/conformist/prediction_dataset.py b/src/conformist/prediction_dataset.py
index dd8968e..3782a5e 100644
--- a/src/conformist/prediction_dataset.py
+++ b/src/conformist/prediction_dataset.py
@@ -452,7 +452,7 @@ def visualize_prediction_heatmap(self, min_softmax_threshold=0.5):
         hm2.set_yticks([])
 
         # Add label
-        hm2.set_xlabel("mean softmax\nfalse positive",
+        hm2.set_xlabel("mean softmax FP",
                        weight='bold',
                        rotation=90)
 
@@ -470,9 +470,8 @@ def visualize_prediction_heatmap(self, min_softmax_threshold=0.5):
         # Rotate x labels
         plt.setp(hm3.get_xticklabels(), rotation=90)
 
-        # Set y label
-        hm3.set_ylabel(f"MEAN PREDICTION SET SIZE, SOFTMAX > {min_softmax_threshold}",
-                       weight='bold', labelpad=labelpad)
+        # Remove y label
+        hm3.set_ylabel('')
 
         # Position y label to the right of heatmap
         hm3.yaxis.set_label_position("right")
@@ -481,7 +480,9 @@ def visualize_prediction_heatmap(self, min_softmax_threshold=0.5):
         hm3.set_yticks([])
 
         # Remove x label
-        hm3.set_xlabel('')
+        hm3.set_xlabel("mean set size\nsoftmax > 0.5",
+                       weight='bold',
+                       rotation=90)
 
         # Remove x ticks
         hm3.set_xticks([])