diff --git a/src/libraries/Common/src/System/Text/ValueStringBuilder.cs b/src/libraries/Common/src/System/Text/ValueStringBuilder.cs
index e5c8610cd60dc5..f686a6f0083f6a 100644
--- a/src/libraries/Common/src/System/Text/ValueStringBuilder.cs
+++ b/src/libraries/Common/src/System/Text/ValueStringBuilder.cs
@@ -146,7 +146,7 @@ public void Insert(int index, char value, int count)
 
         public void Insert(int index, string? s)
         {
-            if (s == null)
+            if (s == null || s == "")
             {
                 return;
             }