diff --git a/pyasic/API/btminer.py b/pyasic/API/btminer.py
index 9587442c..62f89882 100644
--- a/pyasic/API/btminer.py
+++ b/pyasic/API/btminer.py
@@ -356,15 +356,15 @@ class BTMinerAPI(BaseMinerAPI):
         """
         return await self.send_privileged_command(
             "update_pools",
-            pool1=pool_1 if pool_1 else "",
-            worker1=worker_1 if worker_1 else "",
-            passwd1=passwd_1 if passwd_1 else "",
-            pool2=pool_2 if pool_2 else "",
-            worker2=worker_2 if worker_2 else "",
-            passwd2=passwd_2 if passwd_2 else "",
-            pool3=pool_3 if pool_3 else "",
-            worker3=worker_3 if worker_3 else "",
-            passwd3=passwd_3 if passwd_3 else "",
+            pool1=pool_1,
+            worker1=worker_1,
+            passwd1=passwd_1,
+            pool2=pool_2,
+            worker2=worker_2,
+            passwd2=passwd_2,
+            pool3=pool_3,
+            worker3=worker_3,
+            passwd3=passwd_3,
         )
 
     async def restart(self) -> dict:
diff --git a/pyasic/config/__init__.py b/pyasic/config/__init__.py
index e210a7f6..e29641fe 100644
--- a/pyasic/config/__init__.py
+++ b/pyasic/config/__init__.py
@@ -215,9 +215,9 @@ class _PoolGroup:
                 pools[f"worker_{i}"] = pool_wm["user"]
                 pools[f"passwd_{i}"] = pool_wm["pass"]
             else:
-                pools[f"pool_{i}"] = None
-                pools[f"worker_{i}"] = None
-                pools[f"passwd_{i}"] = None
+                pools[f"pool_{i}"] = ""
+                pools[f"worker_{i}"] = ""
+                pools[f"passwd_{i}"] = ""
         return pools
 
     def as_avalon(self, user_suffix: str = None) -> str: