diff --git a/docs/doxygen/scripts/sip_tools.py b/docs/doxygen/scripts/sip_tools.py
index a187e81731..f48d875765 100644
--- a/docs/doxygen/scripts/sip_tools.py
+++ b/docs/doxygen/scripts/sip_tools.py
@@ -18,7 +18,7 @@ class SIPBuilder:
                 continue
         
             header_name = aclass.name[2:].lower()
-            filename = os.path.join(output_dir, header_name + ".sip")
+            filename = os.path.join(output_dir, "_" + header_name + ".sip")
             enums_text = make_enums(aclass)
             method_text = self.make_sip_methods(aclass)
             base_class = get_first_value(aclass.bases)
diff --git a/docs/doxygen/scripts/swig_tools.py b/docs/doxygen/scripts/swig_tools.py
index 3e2ee21469..2a3e6e3fc6 100644
--- a/docs/doxygen/scripts/swig_tools.py
+++ b/docs/doxygen/scripts/swig_tools.py
@@ -18,7 +18,7 @@ class SWIGBuilder:
                 #print "Skipping %s" % aclass.name
                 continue
                 
-            filename = os.path.join(output_dir, header_name + ".i")
+            filename = os.path.join(output_dir, "_" + header_name + ".i")
             enums_text = make_enums(aclass)
             method_text = self.make_swig_methods(aclass)
             text = """