diff --git a/libsvm.spec b/libsvm.spec
index e428bf8..0dc5d47 100644
--- a/libsvm.spec
+++ b/libsvm.spec
@@ -8,7 +8,7 @@ Version: %{rel_ver}
 Release: %{pkg_ver}%{?dist}
 License: BSD
 URL: https://www.csie.ntu.edu.tw/~cjlin/libsvm/
-Source0: %{name}-%{rel_ver}.tar.gz 
+Source0: https://www.csie.ntu.edu.tw/~cjlin/libsvm/%{name}-%{rel_ver}.tar.gz
 
 BuildRoot: %{_tmppath}/%{name}-%{rel_ver}-%{release}-root
 BuildRequires: gcc, gcc-c++, make