diff --git a/libavcodec/mpeg4audio.h b/libavcodec/mpeg4audio.h
index c9eac18188..64a3f029af 100644
--- a/libavcodec/mpeg4audio.h
+++ b/libavcodec/mpeg4audio.h
@@ -94,7 +94,7 @@ enum AudioObjectType {
     AOT_USAC_NOSBR,            ///< N                       Unified Speech and Audio Coding (no SBR)
     AOT_SAOC,                  ///< N                       Spatial Audio Object Coding
     AOT_LD_SURROUND,           ///< N                       Low Delay MPEG Surround
-    AOT_USAC             = 45, ///< N                       Unified Speech and Audio Coding
+    AOT_USAC,                  ///< N                       Unified Speech and Audio Coding
 };
 
 #define MAX_PCE_SIZE 304 ///<Maximum size of a PCE including the 3-bit ID_PCE