diff --git a/lib/session.ts b/lib/session.ts
index 93409d61..b4b0a8e5 100644
--- a/lib/session.ts
+++ b/lib/session.ts
@@ -94,9 +94,15 @@ export function clearAuthCookies() {
   const cookies = document.cookie.split(';');
   for (const cookie of cookies) {
     const [name] = cookie.split('=');
-    // Only clear auth-related cookies
-    if (name.trim().startsWith('next-auth.') || name.trim().startsWith('__Secure-next-auth.') || name.trim().startsWith('__Host-next-auth.')) {
-      document.cookie = `${name.trim()}=; expires=Thu, 01 Jan 1970 00:00:00 UTC; path=/;`;
+    const cookieName = name.trim();
+    
+    // Only clear session cookies, NOT state/CSRF cookies needed for OAuth flow
+    // State cookies are: next-auth.csrf-token, next-auth.state, etc.
+    // Session cookies are: next-auth.session-token, __Secure-next-auth.session-token, etc.
+    if (cookieName.startsWith('next-auth.session-token') || 
+        cookieName.startsWith('__Secure-next-auth.session-token') ||
+        cookieName.startsWith('__Host-next-auth.session-token')) {
+      document.cookie = `${cookieName}=; expires=Thu, 01 Jan 1970 00:00:00 UTC; path=/;`;
     }
   }
 }