diff --git a/mi/mi.h b/mi/mi.h
index d82ca0fbf..c297e3785 100644
--- a/mi/mi.h
+++ b/mi/mi.h
@@ -91,18 +91,6 @@ extern _X_EXPORT RegionPtr miCopyArea(DrawablePtr /*pSrcDrawable */ ,
                                       int       /*yOut */
     );
 
-extern _X_EXPORT RegionPtr miCopyPlane(DrawablePtr /*pSrcDrawable */ ,
-                                       DrawablePtr /*pDstDrawable */ ,
-                                       GCPtr /*pGC */ ,
-                                       int /*srcx */ ,
-                                       int /*srcy */ ,
-                                       int /*width */ ,
-                                       int /*height */ ,
-                                       int /*dstx */ ,
-                                       int /*dsty */ ,
-                                       unsigned long    /*bitPlane */
-    );
-
 extern _X_EXPORT void miGetImage(DrawablePtr /*pDraw */ ,
                                  int /*sx */ ,
                                  int /*sy */ ,
diff --git a/mi/mibitblt.c b/mi/mibitblt.c
index dbcd94c99..0757cb4f0 100644
--- a/mi/mibitblt.c
+++ b/mi/mibitblt.c
@@ -505,85 +505,6 @@ miOpqStipDrawable(DrawablePtr pDraw, GCPtr pGC, RegionPtr prgnSrc,
 
 }
 
-/* MICOPYPLANE -- public entry for the CopyPlane request.
- * strategy:
- * First build up a bitmap out of the bits requested
- * build a source clip
- * Use the bitmap we've built up as a Stipple for the destination
- */
-_X_COLD RegionPtr
-miCopyPlane(DrawablePtr pSrcDrawable,
-            DrawablePtr pDstDrawable,
-            GCPtr pGC,
-            int srcx,
-            int srcy,
-            int width, int height, int dstx, int dsty, unsigned long bitPlane)
-{
-    MiBits *ptile;
-    BoxRec box;
-    RegionPtr prgnSrc, prgnExposed;
-
-    /* incorporate the source clip */
-
-    box.x1 = srcx + pSrcDrawable->x;
-    box.y1 = srcy + pSrcDrawable->y;
-    box.x2 = box.x1 + width;
-    box.y2 = box.y1 + height;
-    /* clip to visible drawable */
-    if (box.x1 < pSrcDrawable->x)
-        box.x1 = pSrcDrawable->x;
-    if (box.y1 < pSrcDrawable->y)
-        box.y1 = pSrcDrawable->y;
-    if (box.x2 > pSrcDrawable->x + (int) pSrcDrawable->width)
-        box.x2 = pSrcDrawable->x + (int) pSrcDrawable->width;
-    if (box.y2 > pSrcDrawable->y + (int) pSrcDrawable->height)
-        box.y2 = pSrcDrawable->y + (int) pSrcDrawable->height;
-    if (box.x1 > box.x2)
-        box.x2 = box.x1;
-    if (box.y1 > box.y2)
-        box.y2 = box.y1;
-    prgnSrc = RegionCreate(&box, 1);
-
-    if (pSrcDrawable->type != DRAWABLE_PIXMAP) {
-        /* clip to visible drawable */
-
-        if (pGC->subWindowMode == IncludeInferiors) {
-            RegionPtr clipList = NotClippedByChildren((WindowPtr) pSrcDrawable);
-
-            RegionIntersect(prgnSrc, prgnSrc, clipList);
-            RegionDestroy(clipList);
-        }
-        else
-            RegionIntersect(prgnSrc, prgnSrc,
-                            &((WindowPtr) pSrcDrawable)->clipList);
-    }
-
-    box = *RegionExtents(prgnSrc);
-    RegionTranslate(prgnSrc, -box.x1, -box.y1);
-
-    if ((box.x2 > box.x1) && (box.y2 > box.y1)) {
-        /* minimize the size of the data extracted */
-        /* note that we convert the plane mask bitPlane into a plane number */
-        box.x1 -= pSrcDrawable->x;
-        box.x2 -= pSrcDrawable->x;
-        box.y1 -= pSrcDrawable->y;
-        box.y2 -= pSrcDrawable->y;
-        ptile = miGetPlane(pSrcDrawable, ffs(bitPlane) - 1,
-                           box.x1, box.y1,
-                           box.x2 - box.x1, box.y2 - box.y1, (MiBits *) NULL);
-        if (ptile) {
-            miOpqStipDrawable(pDstDrawable, pGC, prgnSrc, ptile, 0,
-                              box.x2 - box.x1, box.y2 - box.y1,
-                              dstx + box.x1 - srcx, dsty + box.y1 - srcy);
-            free(ptile);
-        }
-    }
-    prgnExposed = miHandleExposures(pSrcDrawable, pDstDrawable, pGC, srcx, srcy,
-                                    width, height, dstx, dsty);
-    RegionDestroy(prgnSrc);
-    return prgnExposed;
-}
-
 /* MIGETIMAGE -- public entry for the GetImage Request
  * We're getting the image into a memory buffer. While we have to use GetSpans
  * to read a line from the device (since we don't know what that looks like),