diff --git a/http-client/src/main/java/io/micronaut/http/client/netty/DefaultHttpClient.java b/http-client/src/main/java/io/micronaut/http/client/netty/DefaultHttpClient.java
index c79922938a7..2e8c39c90c9 100644
--- a/http-client/src/main/java/io/micronaut/http/client/netty/DefaultHttpClient.java
+++ b/http-client/src/main/java/io/micronaut/http/client/netty/DefaultHttpClient.java
@@ -1638,7 +1638,7 @@ private ClientFilterChain buildChain(AtomicReference<io.micronaut.http.HttpReque
             public Publisher<? extends io.micronaut.http.HttpResponse<?>> proceed(MutableHttpRequest<?> request) {
 
                 int pos = integer.incrementAndGet();
-                if (pos > len) {
+                if (pos >= len) {
                     throw new IllegalStateException("The FilterChain.proceed(..) method should be invoked exactly once per filter execution. The method has instead been invoked multiple times by an erroneous filter definition.");
                 }
                 HttpClientFilter httpFilter = filters.get(pos);