diff --git a/programming/misc/libical/pspec.xml b/programming/misc/libical/pspec.xml
index 25d0e573b3..321bf83063 100644
--- a/programming/misc/libical/pspec.xml
+++ b/programming/misc/libical/pspec.xml
@@ -18,10 +18,13 @@
             <Dependency>cmake</Dependency>
             <Dependency>perl</Dependency>
             <Dependency>doxygen</Dependency>
-            <Dependency>icu4c-devel</Dependency>
+            <Dependency>docbook-xsl</Dependency>
+            <Dependency>gtk-doc</Dependency>
             <Dependency>db-devel</Dependency>
             <Dependency>glib2-devel</Dependency>
             <Dependency>libxml2-devel</Dependency>
+            <Dependency>libxslt-devel</Dependency>
+            <Dependency>python-six</Dependency>
             <Dependency>gobject-introspection-devel</Dependency>
         </BuildDependencies>
     </Source>
@@ -53,6 +56,15 @@
             <Path fileType="data">/usr/lib/pkgconfig</Path>
         </Files>
     </Package>
+    
+    <Package>
+        <Name>libical-docs</Name>
+        <IsA>data:doc</IsA>
+        <Summary>libical reference documents</Summary>
+        <Files>
+            <Path fileType="data">/usr/share/gtk-doc</Path>
+        </Files>
+    </Package>
 
     <History>
         <Update release="5">