diff --git a/src/main/java/eu/siacs/conversations/utils/MimeUtils.java b/src/main/java/eu/siacs/conversations/utils/MimeUtils.java
index 713ba4711..5672de431 100644
--- a/src/main/java/eu/siacs/conversations/utils/MimeUtils.java
+++ b/src/main/java/eu/siacs/conversations/utils/MimeUtils.java
@@ -261,7 +261,7 @@ public final class MimeUtils {
         add("audio/mpeg", "mpga");
         add("audio/mpeg", "mpega");
         add("audio/mpeg", "mp2");
-        add("audio/mpeg", "m4a");
+        add("audio/mp4", "m4a");
         add("audio/mpegurl", "m3u");
         add("audio/ogg", "ogg");
         add("audio/ogg", "oga");