diff --git a/doc/effective_go.html b/doc/effective_go.html
index 096a655214..939d05a7d7 100644
--- a/doc/effective_go.html
+++ b/doc/effective_go.html
@@ -69,7 +69,7 @@ With Go we take an unusual
approach and let the machine
take care of most formatting issues.
The gofmt program
-(also available as go tool fmt, which
+(also available as go fmt, which
operates at the package level rather than source file level)
reads a Go program
and emits the source in a standard style of indentation
diff --git a/doc/effective_go.tmpl b/doc/effective_go.tmpl
index 340acb4d9f..d953989316 100644
--- a/doc/effective_go.tmpl
+++ b/doc/effective_go.tmpl
@@ -65,7 +65,7 @@ With Go we take an unusual
approach and let the machine
take care of most formatting issues.
The gofmt program
-(also available as go tool fmt, which
+(also available as go fmt, which
operates at the package level rather than source file level)
reads a Go program
and emits the source in a standard style of indentation