diff --git a/src/client/hadoop/CephFSInterface.cc b/src/client/hadoop/CephFSInterface.cc
index f8e41c6..4ce35db 100644
--- a/src/client/hadoop/CephFSInterface.cc
+++ b/src/client/hadoop/CephFSInterface.cc
@@ -414,7 +414,7 @@ JNIEXPORT jobjectArray JNICALL Java_org_apache_hadoop_fs_ceph_CephTalker_ceph_1g
       buf = new char[buflen];
       continue;
     }
-    if (r<=0) break;
+    if (r < 0) break;

     //if we make it here, we got at least one name
     bufpos = 0;