diff --git a/crates/katana/cli/src/args.rs b/crates/katana/cli/src/args.rs
index 1ff1c3ce36..b27765d5b8 100644
--- a/crates/katana/cli/src/args.rs
+++ b/crates/katana/cli/src/args.rs
@@ -386,11 +386,7 @@ impl NodeArgs {
 
         #[cfg(feature = "server")]
         {
-            if self.server == ServerOptions::default() {
-                if let Some(server) = config.server {
-                    self.server = server;
-                }
-            }
+            self.server.merge(config.server.as_ref());
 
             if self.metrics == MetricsOptions::default() {
                 if let Some(metrics) = config.metrics {
diff --git a/crates/katana/cli/src/options.rs b/crates/katana/cli/src/options.rs
index 3daaa51cdd..6f4d08fee5 100644
--- a/crates/katana/cli/src/options.rs
+++ b/crates/katana/cli/src/options.rs
@@ -154,6 +154,44 @@ impl Default for ServerOptions {
     }
 }
 
+impl ServerOptions {
+    pub fn merge(&mut self, other: Option<&Self>){
+        if let Some(other) = other {
+            if self.http_addr == DEFAULT_RPC_ADDR {
+                self.http_addr = other.http_addr;
+            }
+            if self.http_port == DEFAULT_RPC_PORT {
+                self.http_port = other.http_port;
+            }
+            if self.http_cors_origins.len() == 0 {
+                self.http_cors_origins = other.http_cors_origins.clone();
+            }
+            if self.http_modules.is_none() {
+                self.http_modules = other.http_modules.clone();
+            }
+            if self.max_event_page_size == DEFAULT_RPC_MAX_EVENT_PAGE_SIZE {
+                self.max_event_page_size = other.max_event_page_size;
+            }
+            if self.max_proof_keys == DEFAULT_RPC_MAX_PROOF_KEYS {
+                self.max_proof_keys = other.max_proof_keys;
+            }
+            if self.max_connections.is_none() {
+                self.max_connections = other.max_connections;
+            }
+            if self.max_request_body_size.is_none() {
+                self.max_request_body_size = other.max_request_body_size;
+            }
+            if self.max_response_body_size.is_none() {
+                self.max_response_body_size = other.max_response_body_size;
+            }
+            if self.max_call_gas == DEFAULT_RPC_MAX_CALL_GAS {
+                self.max_call_gas = other.max_call_gas;
+            }
+        }
+    }
+}
+
+
 #[derive(Debug, Args, Clone, Serialize, Deserialize, Default, PartialEq)]
 #[command(next_help_heading = "Starknet options")]
 pub struct StarknetOptions {