diff --git a/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/context/config/ConfigFileApplicationListener.java b/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/context/config/ConfigFileApplicationListener.java
index e1db438fa4..46a1f4de8a 100644
--- a/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/context/config/ConfigFileApplicationListener.java
+++ b/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/context/config/ConfigFileApplicationListener.java
@@ -141,11 +141,6 @@ public class ConfigFileApplicationListener
 	 */
 	public static final int DEFAULT_ORDER = Ordered.HIGHEST_PRECEDENCE + 10;
 
-	/**
-	 * Name of the application configuration {@link PropertySource}.
-	 */
-	public static final String APPLICATION_CONFIGURATION_PROPERTY_SOURCE_NAME = "applicationConfigurationProperties";
-
 	private final DeferredLog logger = new DeferredLog();
 
 	private String searchLocations;