diff --git a/src/main/java/eu/siacs/conversations/utils/MimeUtils.java b/src/main/java/eu/siacs/conversations/utils/MimeUtils.java
index 92a0fa6868ae20aa11e3dae0fdead23d57674e1e..58137ed460a432e73b4b8e8317bf07af8ede180d 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", "oga");
         add("audio/opus", "opus");