diff --git a/beetsplug/replaygain.py b/beetsplug/replaygain.py
index 7bb2aa39a..2e215938d 100644
--- a/beetsplug/replaygain.py
+++ b/beetsplug/replaygain.py
@@ -195,7 +195,7 @@ class Bs1770gainBackend(Backend):
         # Construct shell command.
         cmd = [self.command]
         cmd = cmd + [self.method]
-        cmd = cmd + [b'-it']
+        cmd = cmd + [b'-p']
 
         # Workaround for Windows: the underlying tool fails on paths
         # with the \\?\ prefix, so we don't use it here. This
diff --git a/docs/changelog.rst b/docs/changelog.rst
index dd4424332..6c7c04496 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -11,6 +11,12 @@ Some fixes for Windows:
 * Queries are now detected as paths when they contain backslashes (in
   addition to forward slashes). This only applies on Windows.
 
+Fixes:
+
+* :doc:`/plugins/replaygain`: The ``bs1770gain`` backend now correctly
+  calculates sample peak instead of true peak. This comes with a major
+  speed increase. :bug:`2031`
+
 
 1.3.18 (May 31, 2016)
 ---------------------