diff --git a/docs/libs/gstreamer-libs-sections.txt b/docs/libs/gstreamer-libs-sections.txt
index 4c72c8dd34..8fc90aae82 100644
--- a/docs/libs/gstreamer-libs-sections.txt
+++ b/docs/libs/gstreamer-libs-sections.txt
@@ -1289,7 +1289,7 @@ gst_harness_stress_statechange_start_full
 gst_harness_stress_push_buffer_start
 gst_harness_stress_push_buffer_start_full
 
-GstHarnessPrepareBuffer
+GstHarnessPrepareBufferFunc
 gst_harness_stress_push_buffer_with_cb_start
 gst_harness_stress_push_buffer_with_cb_start_full
 
diff --git a/libs/gst/check/gstharness.c b/libs/gst/check/gstharness.c
index 831ca75f3c..ebac739828 100644
--- a/libs/gst/check/gstharness.c
+++ b/libs/gst/check/gstharness.c
@@ -2338,7 +2338,7 @@ typedef struct
 
   GstCaps *caps;
   GstSegment segment;
-  GstHarnessPrepareBuffer func;
+  GstHarnessPrepareBufferFunc func;
   gpointer data;
   GDestroyNotify notify;
 } GstHarnessPushBufferThread;
@@ -2725,9 +2725,9 @@ gst_harness_stress_push_buffer_start_full (GstHarness * h,
  * @h: a #GstHarness
  * @caps: a #GstCaps for the #GstBuffer
  * @segment: a #GstSegment
- * @func: a #GstHarnessPrepareBuffer function called before every iteration
+ * @func: a #GstHarnessPrepareBufferFunc function called before every iteration
  * to prepare / create a #GstBuffer for pushing
- * @data: a #gpointer with data to the #GstHarnessPrepareBuffer function
+ * @data: a #gpointer with data to the #GstHarnessPrepareBufferFunc function
  * @notify: a #GDestroyNotify that is called for every push to allow cleaning
  * up the #GstBuffer. (like gst_buffer_unref)
  * @sleep: a #gulong specifying how long to sleep in (microseconds) for
@@ -2744,7 +2744,7 @@ gst_harness_stress_push_buffer_start_full (GstHarness * h,
 GstHarnessThread *
 gst_harness_stress_push_buffer_with_cb_start_full (GstHarness * h,
     GstCaps * caps, const GstSegment * segment,
-    GstHarnessPrepareBuffer func, gpointer data, GDestroyNotify notify,
+    GstHarnessPrepareBufferFunc func, gpointer data, GDestroyNotify notify,
     gulong sleep)
 {
   GstHarnessPushBufferThread *t = g_slice_new0 (GstHarnessPushBufferThread);
diff --git a/libs/gst/check/gstharness.h b/libs/gst/check/gstharness.h
index ba3bd86bb1..29a2bb8065 100644
--- a/libs/gst/check/gstharness.h
+++ b/libs/gst/check/gstharness.h
@@ -182,12 +182,19 @@ GstHarnessThread * gst_harness_stress_statechange_start_full (GstHarness * h,
 GstHarnessThread * gst_harness_stress_push_buffer_start_full (GstHarness * h,
     GstCaps * caps, const GstSegment * segment, GstBuffer * buf, gulong sleep);
 
-typedef GstBuffer * (*GstHarnessPrepareBuffer) (GstHarness * h, gpointer data);
+/**
+ * GstHarnessPrepareBufferFunc:
+ * @h: a #GstHarness
+ * @data: user data
+ *
+ * Since: 1.6
+ */
+typedef GstBuffer * (*GstHarnessPrepareBufferFunc) (GstHarness * h, gpointer data);
 #define gst_harness_stress_push_buffer_with_cb_start(h, c, s, f, d, n)         \
   gst_harness_stress_push_buffer_with_cb_start_full (h, c, s, f, d, n, 0)
 GstHarnessThread * gst_harness_stress_push_buffer_with_cb_start_full (
     GstHarness * h, GstCaps * caps, const GstSegment * segment,
-    GstHarnessPrepareBuffer func, gpointer data, GDestroyNotify notify,
+    GstHarnessPrepareBufferFunc func, gpointer data, GDestroyNotify notify,
     gulong sleep);
 
 #define gst_harness_stress_push_event_start(h, e)                              \