diff --git a/x11/library/libexplain/pspec.xml b/x11/library/libexplain/pspec.xml
index 030a1c70b5..075c17cce6 100644
--- a/x11/library/libexplain/pspec.xml
+++ b/x11/library/libexplain/pspec.xml
@@ -21,6 +21,7 @@
             <Dependency>libtool</Dependency>
             <Dependency>bison</Dependency>
             <Dependency>groff</Dependency>
+            <Dependency>ghostscript-devel</Dependency>
         </BuildDependencies>
     </Source>
 
@@ -29,6 +30,7 @@
         <RuntimeDependencies>
             <Dependency>acl</Dependency>
             <Dependency>libcap</Dependency>
+            <Dependency>ghostscript</Dependency>
         </RuntimeDependencies>
         <Files>
             <Path fileType="executable">/usr/bin</Path>