diff --git a/bin/performance_regression.py b/bin/performance_regression.py
index 7ef368a43d317d7d7afad8d2cfca0d0174054304..64f5f844d1f950f50a1b22bc0a443a0a9757f99f 100755
--- a/bin/performance_regression.py
+++ b/bin/performance_regression.py
@@ -30,7 +30,7 @@ def regression_summary():
     data1 = parse_data()
 
     # Switch to reference data
-    subprocess.call(sys.argv[1:])
+    subprocess.call(sys.argv[1:], shell=True)
 
     # Get reference timings
     run()