diff --git a/docs/workflow/building/coreclr/README.md b/docs/workflow/building/coreclr/README.md
index d74a7ad3b73902ce3acd35724049126f4780f9f6..06e7eba0fba754c07fa7bde4403d19c547c928c1 100644
--- a/docs/workflow/building/coreclr/README.md
+++ b/docs/workflow/building/coreclr/README.md
@@ -11,6 +11,7 @@ For Windows:
 ```
 build.cmd -subset clr
 ```
+Specifying `-subset` explicitly is not necessary if it is the first argument: `./build -subset clr` and `./build clr` are equivalent.
 
 By default, build generates a 'debug' build type, that includes asserts and is easier for some people to debug. If you want to make performance measurements, or just want tests to execute more quickly, you can also build the 'release' version (which does not have these checks) by adding the flag `-configuration release` (or `-c release`), for example:
 ```