diff --git a/build/toolbase/label.go b/build/toolbase/label.go
index b6e8fda..5d033b3 100644
--- a/build/toolbase/label.go
+++ b/build/toolbase/label.go
@@ -36,7 +36,7 @@
 // nil is returned.
 func ParseBazelLabel(s string) *BazelLabel {
 	res := BazelLabel{
-		WorkspaceName: "dev_source_monogon",
+		WorkspaceName: "@",
 	}
 
 	// Split label into workspace name (if set) and a workspace root relative
diff --git a/build/toolbase/label_test.go b/build/toolbase/label_test.go
index 190c834..e16d88f 100644
--- a/build/toolbase/label_test.go
+++ b/build/toolbase/label_test.go
@@ -11,9 +11,9 @@
 		p string
 		t *BazelLabel
 	}{
-		{"//foo/bar", &BazelLabel{"dev_source_monogon", []string{"foo", "bar"}, "bar"}},
-		{"//foo/bar:baz", &BazelLabel{"dev_source_monogon", []string{"foo", "bar"}, "baz"}},
-		{"//:foo", &BazelLabel{"dev_source_monogon", nil, "foo"}},
+		{"//foo/bar", &BazelLabel{"@", []string{"foo", "bar"}, "bar"}},
+		{"//foo/bar:baz", &BazelLabel{"@", []string{"foo", "bar"}, "baz"}},
+		{"//:foo", &BazelLabel{"@", nil, "foo"}},
 
 		{"@test//foo/bar", &BazelLabel{"test", []string{"foo", "bar"}, "bar"}},
 		{"@test//foo/bar:baz", &BazelLabel{"test", []string{"foo", "bar"}, "baz"}},
@@ -43,8 +43,8 @@
 		in   string
 		want string
 	}{
-		{"//foo/bar", "@dev_source_monogon//foo/bar:bar"},
-		{"//foo:bar", "@dev_source_monogon//foo:bar"},
+		{"//foo/bar", "@@//foo/bar:bar"},
+		{"//foo:bar", "@@//foo:bar"},
 		{"@com_github_example//:run", "@com_github_example//:run"},
 	} {
 		l := ParseBazelLabel(te.in)