diff --git a/src/pg_rad/background/background.py b/src/pg_rad/background/background.py
index 0075052..1eaa550 100644
--- a/src/pg_rad/background/background.py
+++ b/src/pg_rad/background/background.py
@@ -11,7 +11,7 @@ def generate_background(
     cps_array: np.ndarray,
     detector: Detector,
     energy_keV: float,
-    
+
 ) -> np.ndarray:
     """
     Generate synthetic background cps for a given detector and energy.
diff --git a/src/pg_rad/physics/fluence.py b/src/pg_rad/physics/fluence.py
index 07b4279..be1ff2f 100644
--- a/src/pg_rad/physics/fluence.py
+++ b/src/pg_rad/physics/fluence.py
@@ -152,7 +152,7 @@ def calculate_counts_along_path(
         cps, detector, landscape.point_sources[0].isotope.E
     )
 
-    cps_with_bg = cps#  + bkg
+    cps_with_bg = cps + bkg
     # reshape so each segment is on a row
     cps_per_seg = cps_with_bg.reshape(num_segments, points_per_segment)