diff --git a/lib/matplotlib/tests/test_image.py b/lib/matplotlib/tests/test_image.py
index 49b8570587fd..0d58f7ad4ee8 100644
--- a/lib/matplotlib/tests/test_image.py
+++ b/lib/matplotlib/tests/test_image.py
@@ -27,6 +27,7 @@
 @image_comparison(['image_interps'], style='mpl20')
 def test_image_interps():
     """Make the basic nearest, bilinear and bicubic interps."""
+    # Remove texts when this image is regenerated.
     # Remove this line when this test image is regenerated.
     plt.rcParams['text.kerning_factor'] = 6
 
diff --git a/lib/matplotlib/tests/test_legend.py b/lib/matplotlib/tests/test_legend.py
index 801254332dd6..0e5ebf75ddc4 100644
--- a/lib/matplotlib/tests/test_legend.py
+++ b/lib/matplotlib/tests/test_legend.py
@@ -254,6 +254,7 @@ def test_legend_expand():
 
 @image_comparison(['hatching'], remove_text=True, style='default')
 def test_hatching():
+    # Remove legend texts when this image is regenerated.
     # Remove this line when this test image is regenerated.
     plt.rcParams['text.kerning_factor'] = 6