diff --git a/src/main/java/balancetalk/global/oauth2/service/CustomOAuth2UserService.java b/src/main/java/balancetalk/global/oauth2/service/CustomOAuth2UserService.java
index 9b05a7d51..af4bad147 100644
--- a/src/main/java/balancetalk/global/oauth2/service/CustomOAuth2UserService.java
+++ b/src/main/java/balancetalk/global/oauth2/service/CustomOAuth2UserService.java
@@ -45,7 +45,7 @@ public OAuth2User loadUser(OAuth2UserRequest userRequest) throws OAuth2Authentic
 
         String email = getEmail(oauth2Response);
         String provider = getProvider(oauth2Response);
-        Member findMember = memberRepository.findByEmail(email).orElse(null);
+        Member findMember = memberRepository.findByEmail(provider + "_" + email).orElse(null);
 
         if (findMember == null) {
             String encodedPassword = passwordEncoder().encode(oauth2Password);