diff --git a/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/r2dbc/R2dbcProperties.java b/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/r2dbc/R2dbcProperties.java
index 7792e67392..90c8c43e38 100644
--- a/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/r2dbc/R2dbcProperties.java
+++ b/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/r2dbc/R2dbcProperties.java
@@ -134,7 +134,7 @@ public class R2dbcProperties {
 	public static class Pool {
 
 		/**
-		 * Idle timeout.
+		 * Maximum amount of time that a connection is allowed to sit idle in the pool.
 		 */
 		private Duration maxIdleTime = Duration.ofMinutes(30);