diff --git a/README.md b/README.md
index 4368692e..a5273ed4 100644
--- a/README.md
+++ b/README.md
@@ -591,7 +591,7 @@ __weak typeof (self) weakSelf = self;
 // Get a waveform with 1024 points of data. We can adjust the number of points to whatever level
 // of detail is needed by the application
 [self.audioFile getWaveformDataWithNumberOfPoints:1024
-                                  completionBlock:^(float **waveformData,
+                                       completion:^(float **waveformData,
                                                     int length)
 {
      [weakSelf.audioPlot updateBuffer:waveformData[0]