diff --git a/Documentation/GlobalTool.md b/Documentation/GlobalTool.md
index 9627167d0..602a4aea8 100644
--- a/Documentation/GlobalTool.md
+++ b/Documentation/GlobalTool.md
@@ -37,7 +37,7 @@ Options:
   --use-source-link                     Specifies whether to use SourceLink URIs in place of file system paths.
   --does-not-return-attribute           Attributes that mark methods that do not return.
   --exclude-assemblies-without-sources  Specifies behaviour of heuristic to ignore assemblies with missing source documents.
-  --use-mapping-file                    Specifies the path to a SourceRootsMappings file.
+  --source-mapping-file                 Specifies the path to a SourceRootsMappings file.
   --version                             Show version information
   -?, -h, --help                        Show help and usage information
 ```