diff --git a/src/coverlet.core/Coverage.cs b/src/coverlet.core/Coverage.cs
index 45a5a5f9d..e2a74a18a 100644
--- a/src/coverlet.core/Coverage.cs
+++ b/src/coverlet.core/Coverage.cs
@@ -401,7 +401,7 @@ private void CalculateCoverage()
                         continue;
                     }
 
-                    foreach (HitCandidate hitCandidateToCompare in result.HitCandidates)
+                    foreach (HitCandidate hitCandidateToCompare in result.HitCandidates.Where(x => x.docIndex.Equals(hitCandidate.docIndex)))
                     {
                         if (hitCandidate != hitCandidateToCompare && !hitCandidateToCompare.isBranch)
                         {