diff --git a/io/driver/module_unload_load.py b/io/driver/module_unload_load.py
index d8a50fe57..bf19db22c 100755
--- a/io/driver/module_unload_load.py
+++ b/io/driver/module_unload_load.py
@@ -73,7 +73,7 @@ def flush_mpath(self, mdl):
         """
         flush the multipath
         """
-        cmd = "lsmod | grep -i ^%s" % mdl
+        cmd = "lsmod | grep -iw ^%s" % mdl
         for i in range(20):
             if process.getoutput(cmd).split(" ")[-1] == '0':
                 return True