diff --git a/gstlal-inspiral/bin/gstlal_inspiral b/gstlal-inspiral/bin/gstlal_inspiral
index d26235011d6877983ebc018656fb97708b2088ce..9b9113dfff932560842d5eda041716db02ee577d 100755
--- a/gstlal-inspiral/bin/gstlal_inspiral
+++ b/gstlal-inspiral/bin/gstlal_inspiral
@@ -143,6 +143,7 @@ import os
 import resource
 import signal
 import socket
+import StringIO
 import sys
 import tempfile