diff --git a/libtasn1.spec b/libtasn1.spec
index 0cfaaca..2e3534c 100644
--- a/libtasn1.spec
+++ b/libtasn1.spec
@@ -25,7 +25,7 @@ License:        LGPL-2.1-or-later AND GPL-3.0-only
 Group:          Productivity/Networking/Security
 URL:            https://www.gnu.org/software/libtasn1/
 Source0:        http://ftp.gnu.org/gnu/libtasn1/%{name}-%{version}.tar.gz
-Source1:        ftp://ftp.gnu.org/gnu/%{name}/%{name}-%{version}.tar.gz.sig
+Source1:        http://ftp.gnu.org/gnu/libtasn1/%{name}-%{version}.tar.gz.sig
 # http://josefsson.org/key.txt
 Source2:        %{name}.keyring
 Source99:       baselibs.conf