diff --git a/Logging/BaseLog.cs b/Logging/BaseLog.cs
index fb4769b0..6a355971 100644
--- a/Logging/BaseLog.cs
+++ b/Logging/BaseLog.cs
@@ -54,6 +54,7 @@ namespace Logging
 
         public void AddStringReplace(string from, string to)
         {
+            if (string.IsNullOrWhiteSpace(from)) return;
             replacements.Add(new BaseLogStringReplacement(from, to));
         }