diff --git a/src/main/java/com/jfinal/template/expr/ast/Logic.java b/src/main/java/com/jfinal/template/expr/ast/Logic.java
index 403dc4c..d14291e 100644
--- a/src/main/java/com/jfinal/template/expr/ast/Logic.java
+++ b/src/main/java/com/jfinal/template/expr/ast/Logic.java
@@ -102,6 +102,7 @@ public class Logic extends Expr {
 		if (v instanceof Boolean) {
 			return (Boolean)v;
 		}
+		
 		if (v instanceof CharSequence) {
 			return ((CharSequence)v).length() > 0;
 		}