diff --git a/docs/detector-arguments.md b/docs/detector-arguments.md
index 9bbcf4d91..49b84ba7b 100644
--- a/docs/detector-arguments.md
+++ b/docs/detector-arguments.md
@@ -10,7 +10,7 @@ dotnet run --project "src\Microsoft.ComponentDetection\Microsoft.ComponentDetect
                               separated glob patterns.
 
   --IgnoreDirectories         Filters out specific directories, providing
-                              individual directory paths separated by semicolon.
+                              individual directory paths separated by commas.
                               Obsolete in favor of DirectoryExclusionList's glob
                               syntax.