diff --git a/gcr.spec b/gcr.spec
index 217475b..eafca90 100644
--- a/gcr.spec
+++ b/gcr.spec
@@ -21,6 +21,8 @@ BuildRequires:  libtasn1-devel
 BuildRequires:  chrpath
 BuildRequires:  vala-devel
 BuildRequires:  vala-tools
+BuildRequires:  libxslt
+BuildRequires:  docbook-style-xsl
 
 Conflicts: gnome-keyring < 3.3.0