diff --git a/spring-core/src/main/java/org/springframework/util/StringUtils.java b/spring-core/src/main/java/org/springframework/util/StringUtils.java
index deed77ff40..f785767a78 100644
--- a/spring-core/src/main/java/org/springframework/util/StringUtils.java
+++ b/spring-core/src/main/java/org/springframework/util/StringUtils.java
@@ -808,7 +808,7 @@ public abstract class StringUtils {
*
Alphanumeric characters {@code "a"} through {@code "z"}, {@code "A"} through {@code "Z"},
* and {@code "0"} through {@code "9"} stay the same.
* Special characters {@code "-"}, {@code "_"}, {@code "."}, and {@code "*"} stay the same.
- * A sequence "{@code %xy}" is interpreted as a hexadecimal representation of the character.
+ * A sequence "{@code %xy}" is interpreted as a hexadecimal representation of the character.
* For all other characters (including those already decoded), the output is undefined.
*
* @param source the encoded String