diff --git a/gcc.spec b/gcc.spec
index f8af99d..2488edf 100644
--- a/gcc.spec
+++ b/gcc.spec
@@ -52,6 +52,7 @@ Requires:       gcc%{gcc_version}
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 BuildRequires:  gcc%{gcc_version}
 Source:         cpp
+Source1:        c99
 Source99:       README.packaging
 
 %description