diff --git a/server/egrpc/interceptor.go b/server/egrpc/interceptor.go
index e2d22c57..01c2e68b 100644
--- a/server/egrpc/interceptor.go
+++ b/server/egrpc/interceptor.go
@@ -286,9 +286,9 @@ func (c *Container) defaultUnaryServerInterceptor() grpc.UnaryServerInterceptor
 				elog.FieldPeerIP(getPeerIP(ctx)),
 			)
 
-			skv, _ := ctx.Value(ctxStoreStruct{}).(*ctxStore)
+			skv, skvOk := ctx.Value(ctxStoreStruct{}).(*ctxStore)
 			for _, key := range loggerKeys {
-				if v, ok := skv.kvs[key]; ok {
+				if v, ok := skv.kvs[key]; skvOk && ok {
 					fields = append(fields, elog.Any(strings.ToLower(key), v))
 				}
 				if value := tools.ContextValue(ctx, key); value != "" {