1 files changed, 11 insertions, 5 deletions
diff --git a/cpp/src/Slice/OutputUtil.cpp b/cpp/src/Slice/OutputUtil.cpp
index a6ec2bb683c..d8087a6f2c4 100644
--- a/cpp/src/Slice/OutputUtil.cpp
+++ b/cpp/src/Slice/OutputUtil.cpp
@@ -172,9 +172,12 @@ Slice::Output::nl()
 
 void
 Slice::Output::sb()
-{
-    nl();
-    _out << _blockStart;
+{
+    if (_blockStart.length())
+    {
+        nl();
+        _out << _blockStart;
+    }
     ++_pos;
     inc();
     _separator = false;
@@ -184,8 +187,11 @@ void
 Slice::Output::eb()
 {
     dec();
-    nl();
-    _out << _blockEnd;
+    if (_blockEnd.length())
+    {
+        nl();
+        _out << _blockEnd;
+    }
     --_pos;
 }