diff --git a/gst-libs/gst/gl/gstglfilter.c b/gst-libs/gst/gl/gstglfilter.c
index 24ebd7521a..eab574da89 100644
--- a/gst-libs/gst/gl/gstglfilter.c
+++ b/gst-libs/gst/gl/gstglfilter.c
@@ -571,7 +571,7 @@ gst_gl_filter_decide_allocation (GstBaseTransform * trans, GstQuery * query)
   return TRUE;
 }
 
-static gboolean
+gboolean
 gst_gl_filter_filter_texture (GstGLFilter * filter, GstBuffer * inbuf,
     GstBuffer * outbuf)
 {
diff --git a/gst-libs/gst/gl/gstglfilter.h b/gst-libs/gst/gl/gstglfilter.h
index e594f8f62b..c3c22e0a3b 100644
--- a/gst-libs/gst/gl/gstglfilter.h
+++ b/gst-libs/gst/gl/gstglfilter.h
@@ -97,6 +97,8 @@ struct _GstGLFilterClass
 
 GType gst_gl_filter_get_type(void);
 
+gboolean gst_gl_filter_filter_texture (GstGLFilter * filter, GstBuffer * inbuf,
+                                       GstBuffer * outbuf);
 
 void
 gst_gl_filter_render_to_target (GstGLFilter *filter,