Opinion by

The libel in this case, based on allegations of indignities to the person and cruel and barbarous treatment, as grounds of divorce, was filed on November 17, 1908. The subpoena was personally served, and the respondent appeared and filed an answer. It appears from the excellent report of the master, which is fully sustained by the evidence, that the parties were married in the city of New York on May 25, 1908; that thereafter they cohabited as husband and wife in the city of Brooklyn, New York, *293until the end of June, 1908, when the libelant returned to her parents in Philadelphia; and that on September 6, 1908, she returned to her husband in Brooklyn, where they cohabited as husband and wife until September 9, 1908, when she left him and returned to her parents in Philadelphia, with whom she continued to reside until' the hearing. At the time of the marriage the libelant was a citizen of Pennsylvania, and the respondent was a resident of the state of New York. So far as appears, he never was domiciled in Pennsylvania. Under the evidence, assuming for a moment that the libel was not prematurely filed, the case falls within the purview of sec. 1 of the Act of June 20, 1893, P. L. 471, which authorizes the courts of common pleas of this commonwealth to entertain jurisdiction o'f cases of divorce for certain specified causes, “where it shall be shown to the court by any wife that she was formerly a citizen of this commonwealth, and that having intermarried with a citizen of any other state or any foreign country, she has been compelled to abandon the habitation and domicile of her husband in such other state or foreign country by reason” etc. But the section contains the proviso, “that no application for such divorce shall be made, unless the applicant therefor shall be a citizen of this commonwealth, or shall have resided therein for the term of one year prior to filing her petition or libel as provided by the laws of this commonwealth.” According to the foregoing statement of facts, the residence and domicile of the libelant, for a considerable part of the year immediately prior to the filing of the libel, were, prima facie at least, in New York. To meet this difficulty the counsel for the libelant cites her testimony to the effect that, when she became married to the respondent and took up her residence with him in New York, it was her intention not to abandon her Pennsylvania domicile, but to return to it. We quote her testimony: “I went over there to my husband, always with the intention of returning home to Philadelphia. At the time we were married I told him that the only way I would live was if he would *294return with me to Philadelphia and he said that he would just as soon as he could find a job here, and I brought him over to Philadelphia with me in June to my residence, and he seemed to be very well pleased with a room I had there at my home, and he said that we could take my room to live in until he could get a place here and a home of our own. Of course we hadn’t decided upon that yet.. With that intention I was married, and always had the intention of returning here. I have all my friends here; all my friends in the church where I still belong. He seemed satisfied about that, but before he could keep his promises his abuse to me was so bad that I was compelled to leave him both times.” It is clear that his promise to go to Philadelphia and take up his residence there as soon as he could find a job did not have the effect of changing his domicile. That remained in New York and became her domicile upon her marriage and cohabitation with him: Dorsey v. Dorsey, 7 Watts, 349; Hollister v. Hollister, 6 Pa. 449. Following out the theory of an identity of person, the law fixes the domicile of the wife by that of the husband and denies to her during cohabitation the power of acquiring a domicile of her own separate and apart from him: 14 Cyc. of Law and Procedure, 846. This statement of the general rule is sustained by abundant authority. Her mere intention that his domicile should not be hers, even though expressed to her husband and assented to by him, could not alter the fact or detract from the legal consequences growing out of their cohabitation in New York in the relation of husband and wife. To hold that her intention to consider Pennsylvania her residence was under the circumstances equivalent to actual bona fide residence in the state, would defeat the manifest purpose of a statutory provision, which ought not to be refined away by such subtlety of reasoning. For it is to be remembered that the statutory prerequisite of a year’s residence in the state is not in the nature of a personal privilege or safeguard which the parties may waive or the court in its discretion may dispense with; it is an essential to jurisdiction over *295the subject-matter. We all concur in the master’s conclusion, which is thus stated: “The master is of opinion that not until the libelant in this case on September 9, 1908, finally left the respondent in New York to return to her home in Philadelphia, on account of his cruel and barbarous treatment, and personal indignities offered to her, could she have a separate domicile under the law. A year’s residence, therefore, must be computed from September 9, 1908, when the libelant legally resumed her domicile.”

On October 26,1909, by leave of court, the libelant filed an amendment of the libel as to paragraphs 2 and 3 thereof, alleging, as to paragraph 2, that at the time of the filing of the amendment the libelant had been a citizen of the state of 'Pennsylvania and had resided therein for the period of one whole year previous to the filing of the amendment; and, as to paragraph 3, alleging that the cruel treatment by respondent and indignities offered by him to libelant’s person forced her to withdraw from his house and family on or about September 9, 1908, instead of October 25, 1908, as set forth in the libel originally filed. It is argued that in computing the year’s residence the date of filing the amendment should be considered as the true date. Counsel rely upon the case of English v. English, 19 Pa. Superior Ct. 586, as authority for this contention. But upon a moment’s reflection it will be seen that it does not sustain lnm. There the court granted the libelant “leave to withdraw from the record the libel heretofore filed in this cause and file the within libel as an amended libel therein.” The respondent filed an answer to the amended libel, denying some of its allegations, and a master was appointed, before whom the libelant’s testimony was given, the respondent appearing at the hearing by counsel. This was the filing of a new libel, and not a mere amendment of the libel already filed. The distinction, as the learned master says, is not one of form, but of substance, and an amendment to a libel which the court has no jurisdiction to entertain cannot avail the libelant. The words of the statute are plain and not open to a con*296struction which would make the date of an amendment of a libel, instead of the date of filing the libel, the period prior to which the year’s residence is to be computed.

The evidence fully sustains the charges as to indignities to the person and cruelty, but for the reasons above stated the court was without jurisdiction and therefore was right in dismissing the libel.

The decree is affirmed.