diff --git a/Code/Mantid/Framework/PythonInterface/plugins/algorithms/ExportVulcanSampleLogs.py b/Code/Mantid/Framework/PythonInterface/plugins/algorithms/ExportVulcanSampleLogs.py
index a65a18c3a535..3154e4988329 100644
--- a/Code/Mantid/Framework/PythonInterface/plugins/algorithms/ExportVulcanSampleLogs.py
+++ b/Code/Mantid/Framework/PythonInterface/plugins/algorithms/ExportVulcanSampleLogs.py
@@ -202,7 +202,7 @@ def _readSampleLogs(self):
 		tmplength = len(logtimesdict[self._sampleloglist[i]])
 		if loglength != tmplength:
 		    if loglength != sys.maxint:
-			self.log().warning("Log %s has different length from previous ones. " % (lognames[i]))
+			self.log().warning("Log %s has different length from previous ones. " % (self._sampleloglist[i]))
 		    loglength = min(loglength, tmplength)
 		# ENDIF
 	    # ENDIF