diff --git a/tldp/doctypes/docbook4xml.py b/tldp/doctypes/docbook4xml.py
index 0b38948..57777be 100644
--- a/tldp/doctypes/docbook4xml.py
+++ b/tldp/doctypes/docbook4xml.py
@@ -54,8 +54,6 @@ class Docbook4XML(BaseDoctype, SignatureChecker):
 
     graph = nx.DiGraph()
 
-    buildorder = ['buildall']
-
     def chdir_output(self):
         os.chdir(self.output.dirname)
         return True
diff --git a/tldp/doctypes/docbooksgml.py b/tldp/doctypes/docbooksgml.py
index 2af88c2..dd5ba09 100644
--- a/tldp/doctypes/docbooksgml.py
+++ b/tldp/doctypes/docbooksgml.py
@@ -50,8 +50,6 @@ class DocbookSGML(BaseDoctype, SignatureChecker):
 
     graph = nx.DiGraph()
 
-    buildorder = ['buildall']
-
     def chdir_output(self):
         os.chdir(self.output.dirname)
         return True
diff --git a/tldp/doctypes/linuxdoc.py b/tldp/doctypes/linuxdoc.py
index 6083506..ebc9692 100644
--- a/tldp/doctypes/linuxdoc.py
+++ b/tldp/doctypes/linuxdoc.py
@@ -26,8 +26,6 @@ class Linuxdoc(BaseDoctype, SignatureChecker):
 
     graph = nx.DiGraph()
 
-    buildorder = ['buildall']
-
     def chdir_output(self):
         os.chdir(self.output.dirname)
         return True