diff --git a/src/cmd/cli_pool_cfg.cpp b/src/cmd/cli_pool_cfg.cpp
index 367beb77..06724463 100644
--- a/src/cmd/cli_pool_cfg.cpp
+++ b/src/cmd/cli_pool_cfg.cpp
@@ -180,7 +180,8 @@ std::string validate_pool_config(json11::Json::object & new_cfg, json11::Json ol
         {
             return "Changing scheme for an existing pool will lead to data loss. Use --force to proceed";
         }
-        if (etcd_state_client_t::parse_scheme(old_cfg["scheme"].string_value()) == POOL_SCHEME_EC)
+        auto old_scheme = etcd_state_client_t::parse_scheme(old_cfg["scheme"].string_value());
+        if (old_scheme == POOL_SCHEME_EC)
         {
             uint64_t old_data_chunks = old_cfg["pg_size"].uint64_value() - old_cfg["parity_chunks"].uint64_value();
             uint64_t new_data_chunks = cfg["pg_size"].uint64_value() - cfg["parity_chunks"].uint64_value();
@@ -189,6 +190,13 @@ std::string validate_pool_config(json11::Json::object & new_cfg, json11::Json ol
                 return "Changing EC data chunk count for an existing pool will lead to data loss. Use --force to proceed";
             }
         }
+        else if (old_scheme != POOL_SCHEME_REPLICATED)
+        {
+            if (old_cfg["pg_size"].uint64_value() != cfg["pg_size"].uint64_value())
+            {
+                return "Changing XOR data chunk count for an existing pool will lead to data loss. Use --force to proceed";
+            }
+        }
         if (old_cfg["block_size"] != cfg["block_size"] ||
             old_cfg["bitmap_granularity"] != cfg["bitmap_granularity"] ||
             old_cfg["immediate_commit"] != cfg["immediate_commit"])