diff --git a/fishctl/src/command/config/update/v1.rs b/fishctl/src/command/config/update/v1.rs
index 9b49a47..861d1fc 100644
--- a/fishctl/src/command/config/update/v1.rs
+++ b/fishctl/src/command/config/update/v1.rs
@@ -340,14 +340,14 @@ fn create_new_server_config(
         if let Some(max_size) = default_yml.get("maxFileSize") {
             let max_size_mb = max_size
                 .as_i64()
-                .ok_or(Error::InvalidConfig("maxFileSize is not an integer"))?
+                .ok_or(Error::InvalidConfig("`maxFileSize` is not an integer"))?
                 / 1_000_000;
             file.max_size = Some(max_size_mb as u64);
         }
         if let Some(proxy_remote_files) = default_yml.get("proxyRemoteFiles") {
-            let proxy_remote_files = proxy_remote_files
-                .as_bool()
-                .ok_or(Error::InvalidConfig("proxyRemoteFiles is not bool"))?;
+            let proxy_remote_files = proxy_remote_files.as_bool().ok_or(Error::InvalidConfig(
+                "`proxyRemoteFiles` is not a boolean value",
+            ))?;
             file.proxy_remote_file = Some(proxy_remote_files);
         }
         if meta.cache_remote_files {
@@ -368,7 +368,7 @@ fn create_new_server_config(
         Some(hosts) => Some(
             hosts
                 .as_vec()
-                .ok_or(Error::InvalidConfig("proxyBypassHosts is not an array"))?
+                .ok_or(Error::InvalidConfig("`proxyBypassHosts` is not an array"))?
                 .iter()
                 .map(|host| {
                     host.as_str()
@@ -387,7 +387,7 @@ fn create_new_server_config(
             enabled: true,
             url: url
                 .as_str()
-                .ok_or(Error::InvalidConfig("proxyUrl is not a string"))?
+                .ok_or(Error::InvalidConfig("`proxyUrl` is not a string"))?
                 .to_string(),
             bypass_hosts: http_proxy_bypass_hosts,
         }),