diff --git a/src/main.cpp b/src/main.cpp
index af2e5f6..be16cd4 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -641,13 +641,15 @@ void displayScope(xmp_module_info *mi, xmp_frame_info *fi) {
 	int horzInc = 1;
 	for (int s = 0; s < fi->buffer_size; s++) {
  		if (nxcol >= COLS-2) break;
- 		int l = lerp(bufbuf[s], xbuf[s], 0.5f);
+ 		int l = lerp(bufbuf[s], lerp(xbuf[s-rate], xbuf[s], 0.5f), 0.5f);
  		int newpos = ((l+0x80) * (LINES - 4)) / 0xFF;
  		horzInc = (newpos < midLine)?-1:1;
    	for (int j = midLine; j != newpos; j+=horzInc) {
    		wmove(dis, j, (int)nxcol);
    		waddch(dis, '|');
    	}
+		wmove(dis, newpos, (int)nxcol);
+		waddch(dis, '|');
 		nxcol+=(1.0*(COLS-2)/fi->buffer_size);
  		bufbuf[s] = l;
  	}