diff --git a/test/mjsunit/mirror-regexp.js b/test/mjsunit/mirror-regexp.js
index 7aae1c6..0711ff9 100644
--- a/test/mjsunit/mirror-regexp.js
+++ b/test/mjsunit/mirror-regexp.js
@@ -25,7 +25,7 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-// Flags: --expose-debug-as debug --harmony-unicode-regexps
+// Flags: --expose-debug-as debug
 // Test the mirror object for regular expression values
 
 var dont_enum = debug.PropertyAttribute.DontEnum;