diff --git a/ast/KnowledgeBase.go b/ast/KnowledgeBase.go
index 44028c93..b3ba4e74 100755
--- a/ast/KnowledgeBase.go
+++ b/ast/KnowledgeBase.go
@@ -80,7 +80,8 @@ func (lib *KnowledgeLibrary) LoadKnowledgeBaseFromReader(reader io.Reader, overw
 	defer func() {
 		if r := recover(); r != nil {
 			retKb = nil
-			logrus.Panicf("panic recovered during LoadKnowledgeBaseFromReader. send us your report to https://github.com/hyperjumptech/grule-rule-engine/issues")
+			retErr = fmt.Errorf("panic recovered during LoadKnowledgeBaseFromReader, recover \"%v\". send us your report to https://github.com/hyperjumptech/grule-rule-engine/issues", r)
+			logrus.Panicf("panic recovered during LoadKnowledgeBaseFromReader, recover \"%v\". send us your report to https://github.com/hyperjumptech/grule-rule-engine/issues", r)
 		}
 	}()