diff --git a/spring-cloud-sleuth-core/src/test/java/org/springframework/cloud/sleuth/autoconfig/TraceAutoConfigurationWithDisabledSleuthTests.java b/spring-cloud-sleuth-core/src/test/java/org/springframework/cloud/sleuth/autoconfig/TraceAutoConfigurationWithDisabledSleuthTests.java
index e620c2349..3da93c116 100644
--- a/spring-cloud-sleuth-core/src/test/java/org/springframework/cloud/sleuth/autoconfig/TraceAutoConfigurationWithDisabledSleuthTests.java
+++ b/spring-cloud-sleuth-core/src/test/java/org/springframework/cloud/sleuth/autoconfig/TraceAutoConfigurationWithDisabledSleuthTests.java
@@ -37,6 +37,7 @@ import static org.assertj.core.api.Assertions.assertThat;
 @SpringBootTest(
 		// WebEnvironment.NONE will not read a Yaml profile
 		webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT,
+		properties = { "spring.config.use-legacy-processing=true" },
 		classes = TraceAutoConfigurationWithDisabledSleuthTests.Config.class)
 @ActiveProfiles("disabled")
 @ExtendWith(OutputCaptureExtension.class)
diff --git a/spring-cloud-sleuth-core/src/test/resources/application-disabled.yml b/spring-cloud-sleuth-core/src/test/resources/application-disabled.yml
deleted file mode 100644
index 19d33f4a3..000000000
--- a/spring-cloud-sleuth-core/src/test/resources/application-disabled.yml
+++ /dev/null
@@ -1,3 +0,0 @@
-spring:
-  sleuth:
-    enabled: false
diff --git a/spring-cloud-sleuth-core/src/test/resources/bootstrap-disabled.yml b/spring-cloud-sleuth-core/src/test/resources/bootstrap-disabled.yml
index 00f987504..c92cb91a0 100644
--- a/spring-cloud-sleuth-core/src/test/resources/bootstrap-disabled.yml
+++ b/spring-cloud-sleuth-core/src/test/resources/bootstrap-disabled.yml
@@ -1,3 +1,5 @@
 spring:
   application:
     name: disabledapplication
+  sleuth:
+    enabled: false