diff --git a/src/et_core.c b/src/et_core.c
index e699c39..fe4554d 100644
--- a/src/et_core.c
+++ b/src/et_core.c
@@ -109,6 +109,7 @@ const ET_File_Description ETFileDescription[] =
     { MP4_FILE, ".mp4", MP4_TAG}, /* Implemented by Michael Ihde. */
     { MP4_FILE, ".m4a", MP4_TAG}, /* Implemented by Michael Ihde. */
     { MP4_FILE, ".m4p", MP4_TAG}, /* Implemented by Michael Ihde. */
+    { MP4_FILE, ".m4v", MP4_TAG},
 #endif
 #ifdef ENABLE_WAVPACK
     { WAVPACK_FILE, ".wv", WAVPACK_TAG}, /* Implemented by Maarten Maathuis. */
diff --git a/src/et_core.h b/src/et_core.h
index 5476550..81aa64c 100644
--- a/src/et_core.h
+++ b/src/et_core.h
@@ -99,7 +99,7 @@ typedef enum
 {                    //                                             (.ext) is not so popular 
     MP2_FILE = 0,    // Mpeg audio Layer 2        : .mp2            (.mpg) (.mpga)
     MP3_FILE,        // Mpeg audio Layer 3        : .mp3            (.mpg) (.mpga)
-    MP4_FILE,        // Mpeg audio Layer 4 / AAC  : .mp4            (.m4a) (.m4p)
+    MP4_FILE,        // Mpeg audio Layer 4 / AAC  : .mp4            (.m4a) (.m4p) (.m4v)
     OGG_FILE,        // Ogg Vorbis audio          : .ogg            (.ogm)
     FLAC_FILE,       // FLAC (lossless)           : .flac .fla
     MPC_FILE,        // MusePack                  : .mpc .mp+ .mpp
