diff --git a/glamor/glamor.c b/glamor/glamor.c
index ff31f5dba..05e05511b 100644
--- a/glamor/glamor.c
+++ b/glamor/glamor.c
@@ -199,6 +199,8 @@ glamor_init(ScreenPtr screen)
 #ifdef RENDER
     glamor_priv->saved_composite = ps->Composite;
     ps->Composite = glamor_composite;
+    glamor_priv->saved_trapezoids = ps->Trapezoids;
+    ps->Trapezoids = glamor_trapezoids;
 #endif
 
     glamor_init_solid_shader(screen);
diff --git a/glamor/glamor_priv.h b/glamor/glamor_priv.h
index aee8e2d3e..e8f486f27 100644
--- a/glamor/glamor_priv.h
+++ b/glamor/glamor_priv.h
@@ -44,6 +44,7 @@ typedef struct glamor_screen_private {
     DestroyPixmapProcPtr saved_destroy_pixmap;
     GetSpansProcPtr saved_get_spans;
     CompositeProcPtr saved_composite;
+    TrapezoidsProcPtr saved_trapezoids;
 
     /* glamor_solid */
     GLint solid_prog;
@@ -149,6 +150,10 @@ void glamor_composite(CARD8 op,
 		      INT16 yDst,
 		      CARD16 width,
 		      CARD16 height);
+void glamor_trapezoids(CARD8 op,
+		       PicturePtr src, PicturePtr dst,
+		       PictFormatPtr mask_format, INT16 x_src, INT16 y_src,
+		       int ntrap, xTrapezoid *traps);
 
 /* glamor_tile.c */
 void glamor_tile(PixmapPtr pixmap, PixmapPtr tile,