diff --git a/src/EvoSC.Common/Config/Mapping/Toml/ThemeConfigOptionsMapper.cs b/src/EvoSC.Common/Config/Mapping/Toml/ThemeConfigOptionsMapper.cs
index dc2db6293..288d72b64 100644
--- a/src/EvoSC.Common/Config/Mapping/Toml/ThemeConfigOptionsMapper.cs
+++ b/src/EvoSC.Common/Config/Mapping/Toml/ThemeConfigOptionsMapper.cs
@@ -25,7 +25,7 @@ public DynamicThemeOptions Deserialize(TomlValue tomlValue)
 
         if (doc == null)
         {
-            throw new InvalidOperationException("Value is not a document.");
+            throw new InvalidOperationException("Value is not a document");
         }
 
         var options = new DynamicThemeOptions();