diff --git a/doc/environment.yml b/doc/environment.yml
index ab92bd8da4..3f9549d4fe 100644
--- a/doc/environment.yml
+++ b/doc/environment.yml
@@ -41,4 +41,3 @@ dependencies:
   - pip:
       - pooch
       - versioneer
-      - -e ..
diff --git a/pyart/io/_sigmetfile.pyx b/pyart/io/_sigmetfile.pyx
index ecac8b868f..9b2faec92b 100644
--- a/pyart/io/_sigmetfile.pyx
+++ b/pyart/io/_sigmetfile.pyx
@@ -214,7 +214,7 @@ cdef class SigmetFile:
             nyquist = wavelength_cm / (10000.0 * 4.0 * prt_value)
             data['WIDTH'] *= nyquist
         # scale 1-byte KDP by the wavelength
-	if 'KDP' in self.data_type_names:
+        if 'KDP' in self.data_type_names:
             # The IRIS Programmer's Manual indicates 1-byte differential phase format
             # data should be divided by the wavelength in cm (section 4.3.12).
             wavelength_cm = self.product_hdr['product_end']['wavelength']