diff --git a/prism/etc/scripts/prism-auto b/prism/etc/scripts/prism-auto
index 86f0a674..e98b80d7 100755
--- a/prism/etc/scripts/prism-auto
+++ b/prism/etc/scripts/prism-auto
@@ -172,8 +172,10 @@ def getArgsListsFromFile(file):
 
 # Create a valid name for a log file based on a list of benchmark arguments
 
-def createLogFileName(args):
+def createLogFileName(args, dir=""):
 	logFile = '.'.join(args)
+	if len(dir) > 0:
+		logFile = re.sub(dir, '', logFile)
 	logFile = re.sub('/', '_', logFile)
 	logFile = re.sub('[^a-zA-Z0-9_, \.]', '', logFile)
 	logFile = re.sub('[ ]+', '.', logFile)
@@ -197,7 +199,7 @@ def walk(dir, meth):
 
 # Run PRISM with a given list of command-line args
 
-def runPrism(args):
+def runPrism(args, dir=""):
 	if options.test:
 		args.append("-test")
 	if options.echo:
@@ -208,7 +210,7 @@ def runPrism(args):
 		prismArgs += options.extraArgs.split(' ');
 	print ' '.join(prismArgs)
 	if options.logDir:
-		logFile = os.path.join(options.logDir, createLogFileName(args))
+		logFile = os.path.join(options.logDir, createLogFileName(args, dir))
 		f = open(logFile, 'w')
 		exitCode = subprocess.Popen(prismArgs, stdout=f).wait()
 		#exitCode = subprocess.Popen(prismArgs, cwd=dir, stdout=f).wait()
@@ -233,15 +235,15 @@ def runPrism(args):
 # Run a benchmark, specified by a list of command-line args,
 # possibly iterating over further lists of args from a "bm" file
 
-def benchmark(args):
+def benchmark(args, dir=""):
 	# Loop through benchmark options, if required
 	if options.bmFile and os.path.isfile(os.path.join(options.bmFile)):
 		argsLists = getArgsListsFromFile(options.bmFile)
 		for bmArgs in argsLists:
-			runPrism(args + bmArgs)
+			runPrism(args + bmArgs, dir)
 	# If none, just use existing args
 	else:
-		runPrism(args)
+		runPrism(args, dir)
 
 # Execute benchmarking based on (possibly recursive) processing of a directory
 
@@ -257,13 +259,13 @@ def benchmarkDir(dir):
 		for modelFile in modelFiles:
 			# Build mode: just build
 			if options.build:
-				benchmark(modelFile + args)
+				benchmark(modelFile + args, dir)
 			# Otherwise, find properties
 			else:
 				if options.matching: propertiesFiles = getMatchingPropertiesInDir(dir, modelFile[0])
 				else: propertiesFiles = getPropertiesInDir(dir)
 				for propertiesFile in propertiesFiles:
-					benchmark(modelFile + propertiesFile)
+					benchmark(modelFile + propertiesFile, dir)
 
 # Execute benchmarking based on a single file (model, property, list)