diff --git a/xce/lib/XChemRefine.py b/xce/lib/XChemRefine.py
index afddd1b5..f206ec86 100755
--- a/xce/lib/XChemRefine.py
+++ b/xce/lib/XChemRefine.py
@@ -767,7 +767,7 @@ def RunBuster(
 
         self.write_refinement_in_progress()
 
-        cmd = "#!/bin/bash\n. /etc/profile.d/modules.sh"
+        cmd = "#!/bin/bash\n. /etc/profile.d/modules.sh\n"
 
         cmd = self.load_modules(cmd)