diff --git a/man/vtable-example.xml b/man/vtable-example.xml
index dc5fac4f267..891b375a4b2 100644
--- a/man/vtable-example.xml
+++ b/man/vtable-example.xml
@@ -10,26 +10,26 @@
  </interface>
  <interface name="org.freedesktop.DBus.Introspectable">
   <method name="Introspect">
-   <arg name="data" type="s" direction="out"/>
+   <arg name="xml_data" type="s" direction="out"/>
   </method>
  </interface>
  <interface name="org.freedesktop.DBus.Properties">
   <method name="Get">
-   <arg name="interface" direction="in" type="s"/>
-   <arg name="property" direction="in" type="s"/>
+   <arg name="interface_name" direction="in" type="s"/>
+   <arg name="property_name" direction="in" type="s"/>
    <arg name="value" direction="out" type="v"/>
   </method>
   <method name="GetAll">
-   <arg name="interface" direction="in" type="s"/>
-   <arg name="properties" direction="out" type="a{sv}"/>
+   <arg name="interface_name" direction="in" type="s"/>
+   <arg name="props" direction="out" type="a{sv}"/>
   </method>
   <method name="Set">
-   <arg name="interface" direction="in" type="s"/>
-   <arg name="property" direction="in" type="s"/>
+   <arg name="interface_name" direction="in" type="s"/>
+   <arg name="property_name" direction="in" type="s"/>
    <arg name="value" direction="in" type="v"/>
   </method>
   <signal name="PropertiesChanged">
-   <arg type="s" name="interface"/>
+   <arg type="s" name="interface_name"/>
    <arg type="a{sv}" name="changed_properties"/>
    <arg type="as" name="invalidated_properties"/>
   </signal>
diff --git a/src/libsystemd/sd-bus/bus-introspect.c b/src/libsystemd/sd-bus/bus-introspect.c
index 866fca7acb8..b9ef6af631c 100644
--- a/src/libsystemd/sd-bus/bus-introspect.c
+++ b/src/libsystemd/sd-bus/bus-introspect.c
@@ -25,28 +25,28 @@
 #define BUS_INTROSPECT_INTERFACE_INTROSPECTABLE                      \
         " <interface name=\"org.freedesktop.DBus.Introspectable\">\n"   \
         "  <method name=\"Introspect\">\n"                              \
-        "   <arg name=\"data\" type=\"s\" direction=\"out\"/>\n"        \
+        "   <arg name=\"xml_data\" type=\"s\" direction=\"out\"/>\n"    \
         "  </method>\n"                                                 \
         " </interface>\n"
 
 #define BUS_INTROSPECT_INTERFACE_PROPERTIES                          \
         " <interface name=\"org.freedesktop.DBus.Properties\">\n"       \
         "  <method name=\"Get\">\n"                                     \
-        "   <arg name=\"interface\" direction=\"in\" type=\"s\"/>\n"    \
-        "   <arg name=\"property\" direction=\"in\" type=\"s\"/>\n"     \
+        "   <arg name=\"interface_name\" direction=\"in\" type=\"s\"/>\n" \
+        "   <arg name=\"property_name\" direction=\"in\" type=\"s\"/>\n" \
         "   <arg name=\"value\" direction=\"out\" type=\"v\"/>\n"       \
         "  </method>\n"                                                 \
         "  <method name=\"GetAll\">\n"                                  \
-        "   <arg name=\"interface\" direction=\"in\" type=\"s\"/>\n"    \
-        "   <arg name=\"properties\" direction=\"out\" type=\"a{sv}\"/>\n" \
+        "   <arg name=\"interface_name\" direction=\"in\" type=\"s\"/>\n" \
+        "   <arg name=\"props\" direction=\"out\" type=\"a{sv}\"/>\n"   \
         "  </method>\n"                                                 \
         "  <method name=\"Set\">\n"                                     \
-        "   <arg name=\"interface\" direction=\"in\" type=\"s\"/>\n"    \
-        "   <arg name=\"property\" direction=\"in\" type=\"s\"/>\n"     \
+        "   <arg name=\"interface_name\" direction=\"in\" type=\"s\"/>\n" \
+        "   <arg name=\"property_name\" direction=\"in\" type=\"s\"/>\n" \
         "   <arg name=\"value\" direction=\"in\" type=\"v\"/>\n"        \
         "  </method>\n"                                                 \
         "  <signal name=\"PropertiesChanged\">\n"                       \
-        "   <arg type=\"s\" name=\"interface\"/>\n"                     \
+        "   <arg type=\"s\" name=\"interface_name\"/>\n"                \
         "   <arg type=\"a{sv}\" name=\"changed_properties\"/>\n"        \
         "   <arg type=\"as\" name=\"invalidated_properties\"/>\n"       \
         "  </signal>\n"                                                 \