diff --git a/spice/__init__.py b/spice/__init__.py
index 002fd4d..25d0c99 100644
--- a/spice/__init__.py
+++ b/spice/__init__.py
@@ -544,7 +544,7 @@ def spice_submission(self):
                 else:
                     if self.interactive_spice:
                         if not self.distributed_run:
-                            self._spice_submission = thesdk.GLOBALS['LSFINTERACTIVE']
+                            self._spice_submission = thesdk.GLOBALS['LSFINTERACTIVE'] + ' '
                         else: # Spectre LSF doesn't support interactive queues
                             self.print_log(type='W', msg='Cannot run in interactive mode if distributed mode is on!')
                             self._spice_submission = thesdk.GLOBALS['LSFSUBMISSION'] + ' -o %s/bsublog.txt ' % (self.spicesimpath)
@@ -552,7 +552,6 @@ def spice_submission(self):
                         self._spice_submission = thesdk.GLOBALS['LSFSUBMISSION'] + ' -o %s/bsublog.txt ' % (self.spicesimpath)
                     if self.nproc:
                         self._spice_submission+=' -n %s ' % self.nproc
-
             except:
                 self.print_log(type='W',msg='Error while defining spice submission command. Running locally.')
                 self._spice_submission=''