diff --git a/libavcodec/libamr.c b/libavcodec/libamr.c
index afe597de2337909f8154a593cc0fac2631c3079f..24d2655821bad2dbcda0b29065065a294372a2d3 100644
--- a/libavcodec/libamr.c
+++ b/libavcodec/libamr.c
@@ -523,7 +523,7 @@ AVCodec libamr_nb_encoder =
 #ifdef CONFIG_LIBAMR_WB
 
 #ifdef _TYPEDEF_H
-//To avoid duplicate typedefs from typdef in amr-nb
+//To avoid duplicate typedefs from typedef in amr-nb
 #define typedef_h
 #endif