diff --git a/rnaseq_pipeline/tasks.py b/rnaseq_pipeline/tasks.py
index 57f0e6db..af88d939 100755
--- a/rnaseq_pipeline/tasks.py
+++ b/rnaseq_pipeline/tasks.py
@@ -489,7 +489,7 @@ class SubmitExperimentsFromDataFrameMixin:
     def requires(self):
         df = self._retrieve_dataframe()
         # using None, the worker will inherit the priority from this task for all its dependencies
-        return [SubmitExperimentToGemma(row.experiment_id, priority=100 if self.ignore_priority else row.get('priority'), rerun=row.get('data')=='resubmit')
+        return [SubmitExperimentToGemma(row.experiment_id, priority=100 if self.ignore_priority else row.get('priority', 100), rerun=row.get('data')=='resubmit')
             for _, row in df.iterrows() if row.get('priority', 1) > 0]
 
 class SubmitExperimentsFromFileToGemma(SubmitExperimentsFromDataFrameMixin, TaskWithOutputMixin, WrapperTask):