diff --git a/dap/algos/streakfind.py b/dap/algos/streakfind.py
index 8e99e07..087f74d 100644
--- a/dap/algos/streakfind.py
+++ b/dap/algos/streakfind.py
@@ -161,7 +161,7 @@ def _calc_streakfinder_analysis(results, cryst_data: CrystData):
     print(f"Found {number_of_streaks} streaks")
 
     list_result = [line.tolist() for line in streak_lines]  # arr(4, n_lines); 0coord x0, y0, x1, y1
-    detected_streaks = np.asarray(detected.streaks.values())[streaks_mask]
+    detected_streaks = np.asarray(list(detected.streaks.values()))[streaks_mask]
     bragg_counts = [streak.total_mass() for streak in detected_streaks]
 
     results.update({"number_of_streaks": number_of_streaks})