diff --git a/assertj-android-mediarouter-v7/src/main/java/org/assertj/android/mediarouter/v7/api/media/MediaRouterRouteInfoAssert.java b/assertj-android-mediarouter-v7/src/main/java/org/assertj/android/mediarouter/v7/api/media/MediaRouterRouteInfoAssert.java
index 9faaaca..938d178 100644
--- a/assertj-android-mediarouter-v7/src/main/java/org/assertj/android/mediarouter/v7/api/media/MediaRouterRouteInfoAssert.java
+++ b/assertj-android-mediarouter-v7/src/main/java/org/assertj/android/mediarouter/v7/api/media/MediaRouterRouteInfoAssert.java
@@ -83,7 +83,7 @@ public MediaRouterRouteInfoAssert hasVolumeMax(int volumeMax) {
     isNotNull();
     int actualVolumeMax = actual.getVolumeMax();
     assertThat(actualVolumeMax) //
-        .overridingErrorMessage("Expected playback stream <%s> but was <%s>.", volumeMax,
+        .overridingErrorMessage("Expected maximum volume <%s> but was <%s>.", volumeMax,
             actualVolumeMax) //
         .isEqualTo(volumeMax);
     return this;