diff --git a/src/modules/module-null-sink.c b/src/modules/module-null-sink.c
index 77153af94..183c9d8d8 100644
--- a/src/modules/module-null-sink.c
+++ b/src/modules/module-null-sink.c
@@ -57,7 +57,7 @@ PA_MODULE_USAGE(
         "channel_map=<channel map> "
         "formats=<semi-colon separated sink formats> "
         "norewinds=<disable rewinds> "
-        "dump=<name of file to dump to, automatically prefixed with /tmp/pulse-> "
+        "dump=<path to file to dump to, automatically prefixed with /tmp/pulse-> "
         "avoid_processing=<use stream original sample spec if possible?> "
 );
 
@@ -94,6 +94,7 @@ static const char* const valid_modargs[] = {
     "formats",
     "norewinds",
     "dump",
+    "avoid_processing",
     NULL
 };
 
@@ -355,6 +356,7 @@ int pa__init(pa_module*m) {
     pa_format_info *format;
     const char *formats, *dump_file;
     size_t nbytes;
+    bool avoid_processing;
 
     pa_assert(m);
 
@@ -365,6 +367,8 @@ int pa__init(pa_module*m) {
 
     ss = m->core->default_sample_spec;
     map = m->core->default_channel_map;
+    avoid_processing = m->core->avoid_processing;
+
     if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_DEFAULT) < 0) {
         pa_log("Invalid sample format specification or channel map");
         goto fail;
@@ -393,6 +397,13 @@ int pa__init(pa_module*m) {
         }
     }
 
+    if (pa_modargs_get_value_boolean(ma, "avoid_processing", &avoid_processing) < 0) {
+        pa_log("Failed to parse avoid_processing argument.");
+        pa_sink_new_data_done(&data);
+        goto fail;
+    }
+    data.avoid_processing = avoid_processing;
+
     pa_sink_new_data_init(&data);
     data.driver = __FILE__;
     data.module = m;