diff --git a/oauth2/oauth2-client/src/main/java/org/springframework/security/oauth2/client/web/reactive/function/client/ServerOAuth2AuthorizedClientExchangeFilterFunction.java b/oauth2/oauth2-client/src/main/java/org/springframework/security/oauth2/client/web/reactive/function/client/ServerOAuth2AuthorizedClientExchangeFilterFunction.java
index de32231455..9366d7ea6e 100644
--- a/oauth2/oauth2-client/src/main/java/org/springframework/security/oauth2/client/web/reactive/function/client/ServerOAuth2AuthorizedClientExchangeFilterFunction.java
+++ b/oauth2/oauth2-client/src/main/java/org/springframework/security/oauth2/client/web/reactive/function/client/ServerOAuth2AuthorizedClientExchangeFilterFunction.java
@@ -223,7 +223,7 @@ public final class ServerOAuth2AuthorizedClientExchangeFilterFunction implements
 		return authorizedClient(request, next)
 				.map(authorizedClient -> bearer(request, authorizedClient))
 				.flatMap(next::exchange)
-				.switchIfEmpty(next.exchange(request));
+				.switchIfEmpty(Mono.defer(() -> next.exchange(request)));
 	}
 
 	private Mono<OAuth2AuthorizedClient> authorizedClient(ClientRequest request, ExchangeFunction next) {