diff --git a/dap-gateway/src/main/resources/application.properties b/dap-gateway/src/main/resources/application.properties
index ca506fe..e8ec0c7 100644
--- a/dap-gateway/src/main/resources/application.properties
+++ b/dap-gateway/src/main/resources/application.properties
@@ -43,6 +43,7 @@ mcp.tool-registry-sync-interval-millis=5000
 
 # API 보안 키 설정
 mcp.security.tenant-domains.TESTER-DEV=ALL
+mcp.security.tenant-domains.system=ALL
 # Spring AI OpenAI / Gemini API Config
 spring.ai.openai.api-key=AQ.Ab8RN6KFZggsQf8iooY1v_3h3vp2TIjiYB54dV4Yay3vVKEMtg
 spring.ai.openai.base-url=https://generativelanguage.googleapis.com/v1beta/openai/