diff --git a/pycbc/workflow/pegasus_workflow.py b/pycbc/workflow/pegasus_workflow.py
index 0a4a6ef4ffd..ba75b3d74ea 100644
--- a/pycbc/workflow/pegasus_workflow.py
+++ b/pycbc/workflow/pegasus_workflow.py
@@ -806,7 +806,7 @@ def set_subworkflow_properties(self, output_map_file,
             if version.parse(sproc_out) >= version.parse('5.0.4'):
                 output_map_file.for_planning=True
         except:
-            print("Could not execute pegasus-version, assuming >= 5.0.4")
+            logging.warning("Could not execute pegasus-version, assuming >= 5.0.4")
             output_map_file.for_planning=True
         self.add_inputs(output_map_file)