diff --git a/pkgs/development/libraries/speex/default.nix b/pkgs/development/libraries/speex/default.nix
index 6904339a57cc..5e852e3e2458 100644
--- a/pkgs/development/libraries/speex/default.nix
+++ b/pkgs/development/libraries/speex/default.nix
@@ -1,10 +1,10 @@
 args: with args;
 
-stdenv.mkDerivation {
-  name = "speex-1.2beta3";
+stdenv.mkDerivation rec {
+  name = "speex-1.2rc1";
   src = fetchurl {
-    url = http://downloads.us.xiph.org/releases/speex/speex-1.2beta3.tar.gz;
-	sha256 = "1az7kiwa8mzi1x7j01gcakx854qcbm4g67n0c4s56bvny6dn18vp";
+    url = "http://downloads.us.xiph.org/releases/speex/${name}.tar.gz";
+	sha256 = "19mpkhbz3s08snvndn0h1dk2j139max6b0rr86nnsjmxazf30brl";
   };
   buildInputs = [libogg];
 }