diff --git a/revpimodio2/modio.py b/revpimodio2/modio.py
index d9a1c5b..4473f14 100644
--- a/revpimodio2/modio.py
+++ b/revpimodio2/modio.py
@@ -418,7 +418,7 @@ class RevPiModIO(object):
                             "defaultvalue '{1}' to boolean"
                             "".format(io, creplaceio[io]["defaultvalue"])
                         )
-                elif dict_replace["frm"].find("s") != 0:
+                elif dict_replace["frm"].find("s") >= 0:
                     buff = bytearray()
                     try:
                         dv_array = creplaceio[io].get("defaultvalue").split(" ")
diff --git a/setup.py b/setup.py
index 2dd0136..bb2592a 100644
--- a/setup.py
+++ b/setup.py
@@ -17,7 +17,7 @@ setup(
 
     license="LGPLv3",
     name="revpimodio2",
-    version="2.5.7b",
+    version="2.5.7d",
 
     packages=["revpimodio2"],
     python_requires="~=3.2",