diff --git a/man/sd_bus_error.xml b/man/sd_bus_error.xml
index 77cb16e143..1d2cd5a7a8 100644
--- a/man/sd_bus_error.xml
+++ b/man/sd_bus_error.xml
@@ -100,7 +100,7 @@
         <paramdef>sd_bus_error *<parameter>e</parameter></paramdef>
         <paramdef>int <parameter>error</parameter></paramdef>
         <paramdef>const char *<parameter>format</parameter></paramdef>
-        <paramdef>va_list ap</paramdef>
+        <paramdef>va_list <parameter>ap</parameter></paramdef>
       </funcprototype>
 
       <funcprototype>
diff --git a/man/sd_bus_message_append.xml b/man/sd_bus_message_append.xml
index b70ec8309c..3cdfa7ef44 100644
--- a/man/sd_bus_message_append.xml
+++ b/man/sd_bus_message_append.xml
@@ -94,13 +94,12 @@
     values for each entry matching the element type of
     the dictionary entries.</para>
 
-    <para>The <function>sd_bus_message_appendv()</function> is equivalent to
-    the function <function>sd_bus_message_append()</function>,
-    except that it is called with a <literal>va_list</literal> instead of
-    a variable number of arguments. This function does not call the
-    <function>va_end()</function> macro. Because it invokes the
-    <function>va_arg()</function> macro, the value of ap
-    is undefined after the call.</para>
+    <para>The <function>sd_bus_message_appendv()</function> is equivalent to the
+    <function>sd_bus_message_append()</function>, except that it is called with
+    a <literal>va_list</literal> instead of a variable number of arguments. This
+    function does not call the <function>va_end()</function> macro. Because it
+    invokes the <function>va_arg()</function> macro, the value of
+    <parameter>ap</parameter> is undefined after the call.</para>
 
     <para>For further details on the D-Bus type system, please consult
     the <ulink