¶1OPINION OF THE COURT
¶2On September 16, 1973, Billy Gene Riggins, appellant, Roy Brown, Paulette Chroughter and Kermitt Brown (the deceased), participated in a robbery of the Nationwide Inn located in the City of Harrisburg. After the conspirators had fled from the scene, an argument developed pertaining to the division of the proceeds of the robbery. During this argument, appellant caused the death of the decedent, Kermitt Brown. On January 14, 1974, the date scheduled for trial, appellant appeared and entered a plea of guilty to the indictment charging robbery. Sentencing under this indictment was deferred pending the disposition of the outstanding murder indictment against Riggins. Trial for the murder indictment was thereupon continued to a later date at the request of the prosecution. On March 18, 1974, appel*509lant entered a plea of guilty, before another judge, to the charge of murder generally pursuant to a plea bargain. The Commonwealth certified to the court that the crime rose no higher than murder of the second degree and also recommended that the sentence to be imposed under the murder bill should be made to run concurrently with whatever sentence was to be imposed under the robbery bill. After hearing the evidence, the court determined the degree of guilt to be murder of the second degree and sentenced Riggins, under the murder bill, to serve a term of imprisonment of not less than five nor more than ten years. Thereafter, the judge who accepted the plea of guilty to the robbery indictment sentenced appellant to serve a term of imprisonment of three to ten years, said sentence to run consecutively with the murder sentence.
¶3The single issue raised in this appeal is whether Riggins should have been permitted to withdraw his plea to the robbery charge when the judge in imposing the sentence under the robbery indictment made the term of imprisonment run consecutively with the sentence that had been imposed under the murder indictment.
¶4It is to be noted that the entry of the plea under the robbery indictment was an unconditional one and was not a product of any type of plea bargaining.
¶5Judgments of sentence affirmed.
¶6. The judgment of sentence under the robbery indictment was appealed to the Superior Court and transferred to this Court. The certification from the Superior Court was pursuant to Pennsylvania Rule of Appellate Procedure 751(b) based on the Appellate Court Jurisdiction Act of July 31, 1970, P.L. 673, art. V, § 503, 17 P.S. 211.503(b) (Supp. 1977-78). Although the Supreme Court has jurisdiction of direct appeals from homicide convictions (Appellate Court Jurisdiction Act of July 31, 1970, P.L. 673, No. 223, art. II, § 202, 17 P.S. 211.202 (Supp. 1977-78)), the present appeal should not be before this Court because appellant is asking for relief with regard to his robbery plea, not his murder plea. In the interest of judicial economy, however, we will address the merits of appellant’s argument.
¶7. Subsection (b)(3) of Rule 319 provides:
“If the judge is satisfied that the plea is understanding^ and voluntarily tendered, he may accept the plea. If thereañer the judge decides not to concur in the plea agreement, he shall permit the defendant to withdraw his plea.” (Emphasis added).
¶8. The appellant does not dispute that the plea to the robbery indictment was voluntarily and knowingly entered. Where the withdrawal of a plea is sought after sentence has been imposed, a showing of prejudice amounting to a manifest injustice is required before a withdrawal is properly justified. Commonwealth v. Starr, 450 Pa. 485, 301 A.2d 592 (1973).