diff --git a/libmpcodecs/ae_toolame.c b/libmpcodecs/ae_toolame.c
index 2a0e9f7941..851fa845f9 100644
--- a/libmpcodecs/ae_toolame.c
+++ b/libmpcodecs/ae_toolame.c
@@ -121,7 +121,7 @@ static int encode_toolame(audio_encoder_t *encoder, uint8_t *dest, void *src, in
 	return ret_size;
 }
 
-int close_toolame(audio_encoder_t *encoder)
+static int close_toolame(audio_encoder_t *encoder)
 {
 	free(encoder->priv);
 	return 1;