diff --git a/gui/src/aaregui/panels/rotation_data_collection.py b/gui/src/aaregui/panels/rotation_data_collection.py
index 7de69409..97f84148 100644
--- a/gui/src/aaregui/panels/rotation_data_collection.py
+++ b/gui/src/aaregui/panels/rotation_data_collection.py
@@ -137,6 +137,9 @@ class RotationDataCollectionPanel(ScanSettingsPanel):
         if total_angle <= 0 or total_angle < image_angle:
             print("Total angle is not valid.")
             return 0
+        elif image_angle <= 0:
+            print("Image angle is not valid.")
+            return 0
 
         return round(total_angle / image_angle)