diff --git a/nireports/interfaces/dmri.py b/nireports/interfaces/dmri.py
index 825a0168..83240376 100644
--- a/nireports/interfaces/dmri.py
+++ b/nireports/interfaces/dmri.py
@@ -56,7 +56,7 @@ class _DWIHeatmapOutputSpec(TraitedSpec):
 
 
 class DWIHeatmap(SimpleInterface):
-    """Prepare an fMRI summary plot for the report."""
+    """Prepare an dMRI summary plot for the report."""
 
     input_spec = _DWIHeatmapInputSpec
     output_spec = _DWIHeatmapOutputSpec
diff --git a/nireports/reportlets/modality/dwi.py b/nireports/reportlets/modality/dwi.py
index d28727d4..5c2c3f2f 100644
--- a/nireports/reportlets/modality/dwi.py
+++ b/nireports/reportlets/modality/dwi.py
@@ -128,7 +128,6 @@ def plot_heatmap(
     return fig
 
 
-
 def rotation_matrix(u, v):
     r"""
     Calculate the rotation matrix *R* such that :math:`R \cdot \mathbf{u} = \mathbf{v}`.
@@ -308,7 +307,7 @@ def plot_gradients(
     **kwargs,
 ):
     """
-    Draw the vectors on a unit sphere with color code for multiple b-value.
+    Draw the vectors on a unit sphere with color code for multiple b-values.
 
     Parameters
     ----------