Opinion by
Judge MacPhail,Mr. Beckett (Petitioner), pro se, has filed a Petition for Review (Petition) alleging that certain of his constitutional rights were violated when his sentence was recomputed administratively without a prior hearing by the addition of “over 6 months” to the minimum and maximum terms of his sentence because of his escape while on the work release program of the State Correctional Institution at Graterford. The Bureau of Corrections (Bureau) has filed a preliminary objection in the nature of a demurrer asserting that Petitioner was not entitled to a prior administrative hearing, that the Petition was untimely filed and that the Petition is moot because the Petitioner was granted an administrative hearing on June 3, 1981.
Of course, in ruling upon a preliminary objection in the nature of a demurrer, we look only to the challenged pleading and accept as true all well pleaded material factual averments and all inferences fairly deducible therefrom. Robinson v. Department of Justice, 32 Pa. Commonwealth Ct. 77, 377 A.2d 1277 (1977). Since the Bureau’s argument regarding mootness is based upon factual information not included in the Petition, a fortiori, it must be rejected.
The Petition states that the escape incident occurred in 1977 and that the Petitioner’s sentence was *159recomputed but there is no indication in the Petition when such recomputation occurred.1 Again, since we are limited to a consideration of facts set forth in the Petition, we must reject the Bureau’s argument that the Petition has not been timely filed.
In Robinson, this Court held under somewhat similar circumstances that the sentence of an escaped prisoner cannot be recomputed without giving the .prisoner a due process hearing. Bureau admits that Robinson would be controlling on the matter of entitlement to an administrative hearing for such cases after September 29, 1977, the date on which Robinson was filed, but they also contend that the Bureau need not apply that decision retroactively because it relates to administrative procedures. First, we note that Petitioner returned to the State Correctional Institution in July of 1977. As we have previously observed, the Petition does not recite when the sentence was recomputed. Certainly the time span between July and September of 1977 is so short that one might reasonably expect that the bureaucratic process which resulted in the recomputation complained of did occur after the Robinson decision came down. In any event, there is nothing in the Petition which would indicate that that is not the fact. In addition, we are not at all convinced that Robinson should not be applied retroactively. In Robinson we held that the failure of the Bureau to provide the prisoner with an administrative hearing was an infringement upon the prisoner’s due process rights as guaranteed by the constitution of the United States, citing Wolff v. McDonnell, 418 U.S. 539 (1974). Notwithstanding the Bureau’s argument that Wolff also holds that judicial *160decisions affecting administrative procedures are not to be retroactively applied, it is our opinion tbat our decision in Robinson in 1977 merely affirmed tbat sueb a right to an administrative bearing has been guaranteed under Federal law since 1974. Former President Judge Bowman, writing for a unanimous court in Robinson said:
Accordingly, we bold tbat Wolff v. McDonnell, supra, applies to tbe redetermination of an escapees’s [sic] sentence and tbat tbe procedural due process safeguards established therein must be afforded such a prisoner.
Id. at 81, 377 A.2d at 1279. Accordingly, we must reject tbe Bureau’s argument tbat Petitioner was not entitled to an administrative bearing prior to tbe re-computation of bis sentence.
For tbe reasons set forth above, tbe Bureau’s preliminary objection must be overruled.
Order
And Now, this 19th day of January 1982 tbe preliminary objection of tbe Bureau of Corrections is overruled.
Judge Pahladino did not participate in tbe decision in this case.In his brief, Petitioner alleges that he did not know of the recomputation until June, 1980.