diff --git a/goextVersion.go b/goextVersion.go
index 4fceb0f..f441fb7 100644
--- a/goextVersion.go
+++ b/goextVersion.go
@@ -1,5 +1,5 @@
 package goext
 
-const GoextVersion = "0.0.318"
+const GoextVersion = "0.0.319"
 
-const GoextVersionTimestamp = "2023-11-13T15:34:58+0100"
+const GoextVersionTimestamp = "2023-11-13T16:45:00+0100"
diff --git a/wmo/queryFindOne.go b/wmo/queryFindOne.go
index 25208f6..acd43a1 100644
--- a/wmo/queryFindOne.go
+++ b/wmo/queryFindOne.go
@@ -81,13 +81,13 @@ func (c *Coll[TData]) findOneInternal(ctx context.Context, filter bson.M, allowN
 		if cursor.Next(ctx) {
 			v, err := c.decodeSingle(ctx, cursor)
 			if err != nil {
-				return nil, exerr.Wrap(err, "mongo-aggregation [find-one] failed").Any("pipeline", pipeline).Str("collection", c.Name()).Build()
+				return nil, exerr.Wrap(err, "mongo-aggregation [find-one] failed to decode results").Any("pipeline", pipeline).Str("collection", c.Name()).Build()
 			}
 			return &v, nil
 		} else if allowNull {
 			return nil, nil
 		} else {
-			return nil, exerr.Wrap(err, "mongo-aggregation [find-one] failed").Any("pipeline", pipeline).Str("collection", c.Name()).Build()
+			return nil, exerr.Wrap(mongo.ErrNoDocuments, "mongo-aggregation [find-one] returned no documents").Any("pipeline", pipeline).Str("collection", c.Name()).Build()
 		}
 	}
 }