diff --git a/README.md b/README.md
index d3fe6af185..4e387b3399 100644
--- a/README.md
+++ b/README.md
@@ -81,7 +81,7 @@ On Windows:
 
 ```
 bazel build //release:sdk-release-tarball
-tar -vxf .\bazel-genfiles\release\sdk-release-tarball.tar.z
+tar -vxf .\bazel-genfiles\release\sdk-release-tarball.tar.gz
 cd sdk-*
 daml\daml.exe install . --activate
 ```