diff --git a/liblog/logger_read.cpp b/liblog/logger_read.cpp
index 4b4012a..e8a89eb 100644
--- a/liblog/logger_read.cpp
+++ b/liblog/logger_read.cpp
@@ -272,7 +272,7 @@
                                   struct log_msg* log_msg) {
   int ret = (*transp->transport->read)(logger_list, transp, log_msg);
 
-  if (ret < 0) {
+  if (ret <= 0) {
     return ret;
   }