1 files changed, 3 insertions, 0 deletions
diff --git a/README.md b/README.md
index 2cf78760..1f302c53 100644
--- a/README.md
+++ b/README.md
@@ -172,6 +172,9 @@ cd chisel3
 sbt compile
 ```
 
+In order to run the following unit tests, make sure you have Verilator installed and on your `PATH`
+(you can check this by running `which verilator`).
+
 If the compilation succeeded, you can then run the included unit tests by invoking:
 
 ```