diff --git a/vala/libpulse.vapi b/vala/libpulse.vapi
index 107b745b3..f54f1ae03 100644
--- a/vala/libpulse.vapi
+++ b/vala/libpulse.vapi
@@ -1078,6 +1078,9 @@ namespace PulseAudio {
                 public Operation? set_sink_input_volume(uint32 idx, CVolume volume, SuccessCb? cb = null);
                 public Operation? set_sink_input_mute(uint32 idx, bool mute, SuccessCb? cb = null);
 
+                public Operation? set_source_output_volume(uint32 idx, CVolume volume, SuccessCb? cb = null);
+                public Operation? set_source_output_mute(uint32 idx, bool mute, SuccessCb? cb = null);
+
                 public Operation? kill_sink_input(uint32 idx, SuccessCb? cb = null);
 
                 public Operation? get_source_output_info(uint32 idx, SourceOutputInfoCb cb);
@@ -1404,7 +1407,7 @@ namespace PulseAudio {
                 public SampleSpec sample_spec;
                 public ChannelMap channel_map;
                 public uint32 buffer_usec;
-                public uint32 sink_usec;
+                public uint32 source_usec;
                 public string resample_method;
                 public string driver;
                 public Proplist proplist;