diff --git a/test/framework/src/main/java/org/elasticsearch/test/ESTestCase.java b/test/framework/src/main/java/org/elasticsearch/test/ESTestCase.java
index b31e4be9dc578..dec8d563e0c19 100644
--- a/test/framework/src/main/java/org/elasticsearch/test/ESTestCase.java
+++ b/test/framework/src/main/java/org/elasticsearch/test/ESTestCase.java
@@ -405,7 +405,7 @@ public void ensureNoWarnings() {
                 // unit tests do not run with the bundled JDK, if there are warnings we need to filter the no-jdk deprecation warning
                 final List<String> filteredWarnings = warnings
                     .stream()
-                    .filter(k -> filteredWarnings().stream().anyMatch(s -> s.contains(k)))
+                    .filter(k -> filteredWarnings().stream().anyMatch(s -> s.contains(k) == false))
                     .collect(Collectors.toList());
                 assertThat("unexpected warning headers", filteredWarnings, empty());
             } else {