diff --git a/gstreamer.spec.in b/gstreamer.spec.in
index dfdb83dbaa..07e6810bf2 100644
--- a/gstreamer.spec.in
+++ b/gstreamer.spec.in
@@ -15,10 +15,11 @@ Requires: 	glib2 >= %_glib2
 Requires: 	libxml2 >= %_libxml2
 BuildRequires: 	glib2-devel >= %_glib2
 BuildRequires: 	libxml2-devel >= %_libxml2
-BuildRequires: 	nasm => 0.90
+BuildRequires: 	nasm >= 0.90
 BuildRequires: 	bison
-BuildRequires: 	gtk-doc
+BuildRequires: 	gtk-doc >= 0.7
 BuildRequires: 	gcc
+BuildRequires: 	zlib-devel
 
 %description
 GStreamer is a streaming-media framework, based on graphs of filters which