diff --git a/Demo/sgi/sv/contcapt.py b/Demo/sgi/sv/contcapt.py
index 4d2e888..6c0a000 100755
--- a/Demo/sgi/sv/contcapt.py
+++ b/Demo/sgi/sv/contcapt.py
@@ -81,7 +81,7 @@
 		elif dev == DEVICE.TIMER0:
 			try:
 				captureData, fieldID = v.GetCaptureData()
-			except RuntimeError, val:
+			except sv.error, val:
 				if val <> 'no data available':
 					print val
 				continue