diff --git a/testutils/testutils.go b/prometheus/testutil/testutil.go
similarity index 99%
rename from testutils/testutils.go
rename to prometheus/testutil/testutil.go
index c732a03..562009c 100644
--- a/testutils/testutils.go
+++ b/prometheus/testutil/testutil.go
@@ -14,7 +14,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-package testutils
+package testutil
 
 import (
 	"bytes"
diff --git a/testutils/testutils_test.go b/prometheus/testutil/testutil_test.go
similarity index 99%
rename from testutils/testutils_test.go
rename to prometheus/testutil/testutil_test.go
index 54bdf8e..773b94c 100644
--- a/testutils/testutils_test.go
+++ b/prometheus/testutil/testutil_test.go
@@ -1,4 +1,4 @@
-package testutils
+package testutil
 
 import (
 	"testing"