diff --git a/packages.ent b/packages.ent
index 32fc2a351..5f3d57c06 100644
--- a/packages.ent
+++ b/packages.ent
@@ -210,7 +210,7 @@
 
 <!ENTITY gmp-version "5.1.0">
 <!ENTITY gmp-size "1,764 KB">
-<!ENTITY gmp-url "ftp://ftp.gmplib.org/pub/gmp-&gmp-version;.tar.xz">
+<!ENTITY gmp-url "ftp://ftp.gmplib.org/pub/gmp-&gmp-version;/gmp-&gmp-version;.tar.xz">
 <!ENTITY gmp-md5 "69fd511e435f81a0334f14f00c7d77b3">
 <!ENTITY gmp-home "&gnu-software;gmp/">
 <!ENTITY gmp-ch5-du "39 MB">