diff --git a/Modules/Filtering/FFT/include/itkFFTPadImageFilter.h b/Modules/Filtering/FFT/include/itkFFTPadImageFilter.h
index 6cab46c2ef5..e41dd30445f 100644
--- a/Modules/Filtering/FFT/include/itkFFTPadImageFilter.h
+++ b/Modules/Filtering/FFT/include/itkFFTPadImageFilter.h
@@ -81,8 +81,8 @@ class ITK_TEMPLATE_EXPORT FFTPadImageFilter : public PadImageFilterBase<TInputIm
    * Set/Get the greatest prime factor allowed on the size of the padded image.
    *
    * The filter increases the dimensional sizes of the image to reach a size with the greatest
-   * prime factor smaller or equal to the specified value. The default values is
-   * obtained from the ForwardFFTImageFilter, which is 13 for FFTW,
+   * prime factor smaller or equal to the specified value. The default value is
+   * obtained from the ForwardFFTImageFilter, which is 13 for FFTW, 11 for PocketFFT,
    * and 5 for VNL.
    *
    * A greatest prime factor of 2 produce a size which is a power of 2, and thus