diff --git a/hutool-core/src/test/java/cn/hutool/core/util/CharUtilTest.java b/hutool-core/src/test/java/cn/hutool/core/util/CharUtilTest.java
index a9f14d892..db8768319 100644
--- a/hutool-core/src/test/java/cn/hutool/core/util/CharUtilTest.java
+++ b/hutool-core/src/test/java/cn/hutool/core/util/CharUtilTest.java
@@ -40,6 +40,9 @@ public class CharUtilTest {
 
 		final char a4 = '\u0000';
 		Assert.assertTrue(CharUtil.isBlankChar(a4));
+
+		final char a5 = ' ';
+		Assert.assertTrue(CharUtil.isBlankChar(a5));
 	}
 
 	@Test