ORDER

RICHARD H. KYLE, District Judge.

In this action, Plaintiff George H. Kalberer has sued his former employer (the Star Tribune newspaper) and his union (Teamsters Local 120), asserting that he was discriminated against and ultimately fired on account of his age. Kalberer's application to proceed in forma pauperis was granted by Magistrate Judge Mayeron on April 3, 2012, and he was then provided with forms to enable the United States Marshal's Service to effect service of process. The docket includes proof of service on the Star Tribune dated April 20, 2012 (see Doc. No. 6), but no proof of service on Teamsters Local 120 has been filed.

Kalberer now moves for the entry of a default judgment against Teamsters Local 120 (Doc. No. 13), but that request must be denied. Federal Rule of Civil Procedure 4(1) requires that proof of service — in the form of an affidavit by the process server — be filed with the Court, yet no such affidavit is found in the record here. And without competent proof of valid service, Kalberer cannot obtain a default judgment against Teamsters Local 120. See, e.g., Gold Kist, Inc. v. Laurinburg Oil Co., 756 F.2d 14, 19 (3d Cir. 1985) ("A default judgment entered when there has been no proper service of the complaint is, a fortiori, void.").1

Based on the foregoing, and all the files, records, and proceedings herein, IT IS ORDERED that Kalberer's Motion (Doc. No. 13) is DENIED, without prejudice to being renewed upon a proper showing of service of process on Teamsters Local 120.