diff --git a/docs/modules/ROOT/pages/reactive/integrations/observability.adoc b/docs/modules/ROOT/pages/reactive/integrations/observability.adoc
index 706b15e9cb..da183cb309 100644
--- a/docs/modules/ROOT/pages/reactive/integrations/observability.adoc
+++ b/docs/modules/ROOT/pages/reactive/integrations/observability.adoc
@@ -192,7 +192,7 @@ Instead, you can alter the provided `ObservationRegistry` with an `ObservationPr
 ----
 @Bean
 ObservationRegistryCustomizer<ObservationRegistry> noSpringSecurityObservations() {
-	ObservationPredicate predicate = (name, context) -> name.startsWith("spring.security.")
+	ObservationPredicate predicate = (name, context) -> !name.startsWith("spring.security.")
 	return (registry) -> registry.observationConfig().observationPredicate(predicate)
 }
 ----
@@ -202,7 +202,7 @@ ObservationRegistryCustomizer<ObservationRegistry> noSpringSecurityObservations(
 ----
 @Bean
 fun noSpringSecurityObservations(): ObservationRegistryCustomizer<ObservationRegistry> {
-	ObservationPredicate predicate = (name: String, context: Observation.Context) -> name.startsWith("spring.security.")
+	ObservationPredicate predicate = (name: String, context: Observation.Context) -> !name.startsWith("spring.security.")
 	(registry: ObservationRegistry) -> registry.observationConfig().observationPredicate(predicate)
 }
 ----
diff --git a/docs/modules/ROOT/pages/servlet/integrations/observability.adoc b/docs/modules/ROOT/pages/servlet/integrations/observability.adoc
index 63bc157f7d..d92348b1db 100644
--- a/docs/modules/ROOT/pages/servlet/integrations/observability.adoc
+++ b/docs/modules/ROOT/pages/servlet/integrations/observability.adoc
@@ -197,7 +197,7 @@ Instead, you can alter the provided `ObservationRegistry` with an `ObservationPr
 ----
 @Bean
 ObservationRegistryCustomizer<ObservationRegistry> noSpringSecurityObservations() {
-	ObservationPredicate predicate = (name, context) -> name.startsWith("spring.security.")
+	ObservationPredicate predicate = (name, context) -> !name.startsWith("spring.security.");
 	return (registry) -> registry.observationConfig().observationPredicate(predicate)
 }
 ----
@@ -207,7 +207,7 @@ ObservationRegistryCustomizer<ObservationRegistry> noSpringSecurityObservations(
 ----
 @Bean
 fun noSpringSecurityObservations(): ObservationRegistryCustomizer<ObservationRegistry> {
-	ObservationPredicate predicate = (name: String, context: Observation.Context) -> name.startsWith("spring.security.")
+	ObservationPredicate predicate = (name: String, context: Observation.Context) -> !name.startsWith("spring.security.")
 	(registry: ObservationRegistry) -> registry.observationConfig().observationPredicate(predicate)
 }
 ----