diff --git a/src/main/java/com/alibaba/druid/pool/DruidAbstractDataSource.java b/src/main/java/com/alibaba/druid/pool/DruidAbstractDataSource.java
index da925b5e8a..8e76d8a970 100644
--- a/src/main/java/com/alibaba/druid/pool/DruidAbstractDataSource.java
+++ b/src/main/java/com/alibaba/druid/pool/DruidAbstractDataSource.java
@@ -340,7 +340,7 @@ public abstract class DruidAbstractDataSource extends WrapperAdapter implements
     }
 
     public boolean isUseUnfairLock() {
-        return lock.isFair();
+        return !lock.isFair();
     }
 
     public void setUseUnfairLock(boolean useUnfairLock) {