diff --git a/src/chanjo2/meta/handle_d4.py b/src/chanjo2/meta/handle_d4.py
index 393b9305..080cce06 100644
--- a/src/chanjo2/meta/handle_d4.py
+++ b/src/chanjo2/meta/handle_d4.py
@@ -1,4 +1,3 @@
-import logging
 import subprocess
 import tempfile
 from statistics import mean
@@ -18,7 +17,6 @@
     TranscriptTag,
 )
 
-LOG = logging.getLogger(__name__)
 CHROM_INDEX = 0
 START_INDEX = 1
 STOP_INDEX = 2
@@ -90,10 +88,6 @@ def get_report_sample_interval_coverage(
 ) -> None:
     """Compute stats to populate a coverage report and coverage overview for one sample."""
 
-    if not intervals_coords:
-        intervals_coords = []
-        completeness_thresholds = []
-
     # Compute intervals coverage
     intervals_coverage: List[float] = get_d4tools_intervals_mean_coverage(
         d4_file_path=d4_file_path, intervals=intervals_coords
@@ -154,9 +148,10 @@ def get_report_sample_interval_coverage(
         interval_ids.add(interval.ensembl_id)
 
     for threshold in completeness_thresholds:
-        completeness_row_dict[f"completeness_{threshold}"] = round(
-            mean(thresholds_dict[threshold]) * 100, 2
-        )
+        if thresholds_dict[threshold]:
+            completeness_row_dict[f"completeness_{threshold}"] = round(
+                mean(thresholds_dict[threshold]) * 100, 2
+            )
 
     report_data["completeness_rows"].append((sample_name, completeness_row_dict))
     report_data["incomplete_coverage_rows"] += incomplete_coverages_rows