diff --git a/util/tracing/visualization/fedsd.py b/util/tracing/visualization/fedsd.py
index e91249995..d9d44253b 100644
--- a/util/tracing/visualization/fedsd.py
+++ b/util/tracing/visualization/fedsd.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 
 # Utility that reports the interactions (exchanged messages) between federates and the RTI in a 
 # sequence-diagram-like format, or between enclaves in an enclaved execution.