diff --git a/wx/lib/pdfviewer/viewer.py b/wx/lib/pdfviewer/viewer.py
index 7b75724b..7f24a5cf 100644
--- a/wx/lib/pdfviewer/viewer.py
+++ b/wx/lib/pdfviewer/viewer.py
@@ -516,7 +516,10 @@ class mupdfProcessor(object):
         matrix = fitz.Matrix(scale, scale)
         try:
             pix = page.getPixmap(matrix=matrix)   # MUST be keyword arg(s)
-            bmp = wx.Bitmap.FromBufferRGBA(pix.width, pix.height, pix.samples)
+            if [int(v) for v in fitz.version[1].split('.')] >= [1,15,0]:
+                bmp = wx.Bitmap.FromBuffer(pix.width, pix.height, pix.samples)
+            else:
+                bmp = wx.Bitmap.FromBufferRGBA(pix.width, pix.height, pix.samples)
             gc.DrawBitmap(bmp, 0, 0, pix.width, pix.height)
             self.zoom_error = False
         except (RuntimeError, MemoryError):
@@ -1075,4 +1078,3 @@ class pdfPrintout(wx.Printout):
 
         self.view.pdfdoc.RenderPage(gc, pageno, sfac)
         return True
-