diff --git a/spring-context/src/main/java/org/springframework/scheduling/support/BitsCronField.java b/spring-context/src/main/java/org/springframework/scheduling/support/BitsCronField.java
index 5862145c8fd..015a7fe729f 100644
--- a/spring-context/src/main/java/org/springframework/scheduling/support/BitsCronField.java
+++ b/spring-context/src/main/java/org/springframework/scheduling/support/BitsCronField.java
@@ -150,7 +150,7 @@ final class BitsCronField extends CronField {
 	}
 
 	private static ValueRange parseRange(String value, Type type) {
-		if (value.indexOf('*') != -1) {
+		if (value.equals("*")) {
 			return type.range();
 		}
 		else {
diff --git a/spring-context/src/test/java/org/springframework/scheduling/support/BitsCronFieldTests.java b/spring-context/src/test/java/org/springframework/scheduling/support/BitsCronFieldTests.java
index b608dd5a685..8cd20cfe569 100644
--- a/spring-context/src/test/java/org/springframework/scheduling/support/BitsCronFieldTests.java
+++ b/spring-context/src/test/java/org/springframework/scheduling/support/BitsCronFieldTests.java
@@ -48,6 +48,9 @@ public class BitsCronFieldTests {
 		assertThatIllegalArgumentException().isThrownBy(() -> BitsCronField.parseMonth("13"));
 		assertThatIllegalArgumentException().isThrownBy(() -> BitsCronField.parseDaysOfWeek("8"));
 		assertThatIllegalArgumentException().isThrownBy(() -> BitsCronField.parseSeconds("20-10"));
+		assertThatIllegalArgumentException().isThrownBy(() -> BitsCronField.parseDaysOfWeek("*SUN"));
+		assertThatIllegalArgumentException().isThrownBy(() -> BitsCronField.parseDaysOfWeek("SUN*"));
+		assertThatIllegalArgumentException().isThrownBy(() -> BitsCronField.parseHours("*ANYTHING_HERE"));
 	}
 
 	@Test