1 files changed, 1 insertions, 1 deletions

diff --git a/experiment/executable/executable.py b/experiment/executable/executable.py
index 897c2d9..09b7370 100644
--- a/experiment/executable/executable.py
+++ b/experiment/executable/executable.py
@@ -71,4 +71,4 @@ class Executable(object):
 
         self.sp.wait()
         if self.sp.returncode != 0:
-            print >>sys.stderr, "Non-zero return: %s %s" % (self.exec_file, self.extra_args)
+            print >>sys.stderr, "Non-zero return: %s %s" % (self.exec_file, " ".join(self.extra_args))