EXHIBIT 3.5 CERTIFICATE OF AMENDMENT TO CERTIFICATE OF LIMITED PARTNERSHIP OF HANOVER COMPRESSION LIMITED PARTNERSHIP It is hereby certified that: FIRST: The name of the limited partnership is HANOVER COMPRESSION LIMITED PARTNERSHIP (the "Partnership") SECOND: Pursuant to provisions of Section 17-202, Title 6, Delaware Code, the Certificate of Limited Partnership is amended as follows: "Third: The name and mailing address of the sole general partner of the Partnership is: Hanover Compression General Holdings, LLC 12001 North Houston Rosslyn Houston, Texas 77086" Dated: August 20, 2001 Hanover Compression Limited Partnership By: Hanover Compression General Holdings, LLC, its General Partner By: /s/ Richard S. Meller --------------------------------- Richard S. Meller, authorized person