diff --git a/pyqtgraph/widgets/RemoteGraphicsView.py b/pyqtgraph/widgets/RemoteGraphicsView.py
index 75ce90b0..85f5556a 100644
--- a/pyqtgraph/widgets/RemoteGraphicsView.py
+++ b/pyqtgraph/widgets/RemoteGraphicsView.py
@@ -77,6 +77,10 @@ class RemoteGraphicsView(QtGui.QWidget):
             if sys.platform.startswith('win'):
                 self.shmtag = newfile   ## on windows, we create a new tag for every resize
                 self.shm = mmap.mmap(-1, size, self.shmtag) ## can't use tmpfile on windows because the file can only be opened once.
+            elif sys.platform == 'darwin':
+                self.shmFile.close()
+                self.shmFile = open(self._view.shmFileName(), 'r')
+                self.shm = mmap.mmap(self.shmFile.fileno(), size, mmap.MAP_SHARED, mmap.PROT_READ)
             else:
                 self.shm = mmap.mmap(self.shmFile.fileno(), size, mmap.MAP_SHARED, mmap.PROT_READ)
         self.shm.seek(0)
@@ -193,6 +197,13 @@ class Renderer(GraphicsView):
                     ## it also says (sometimes) 'access is denied' if we try to reuse the tag.
                     self.shmtag = "pyqtgraph_shmem_" + ''.join([chr((random.getrandbits(20)%25) + 97) for i in range(20)])
                     self.shm = mmap.mmap(-1, size, self.shmtag)
+                elif sys.platform == 'darwin':
+                    self.shm.close()
+                    self.shmFile.close()
+                    self.shmFile = tempfile.NamedTemporaryFile(prefix='pyqtgraph_shmem_')
+                    self.shmFile.write(b'\x00' * (size + 1))
+                    self.shmFile.flush()
+                    self.shm = mmap.mmap(self.shmFile.fileno(), size, mmap.MAP_SHARED, mmap.PROT_WRITE)
                 else:
                     self.shm.resize(size)