diff --git a/src/songvec.c b/src/songvec.c
index 578766bcc..8e3b9b955 100644
--- a/src/songvec.c
+++ b/src/songvec.c
@@ -29,7 +29,7 @@ Song *songvec_find(struct songvec *sv, const char *url)
 	return NULL;
 }
 
-int songvec_delete(struct songvec *sv, Song *del)
+int songvec_delete(struct songvec *sv, const Song *del)
 {
 	int i;
 
diff --git a/src/songvec.h b/src/songvec.h
index e374798be..47b5ea6c0 100644
--- a/src/songvec.h
+++ b/src/songvec.h
@@ -13,7 +13,7 @@ void songvec_sort(struct songvec *sv);
 
 Song *songvec_find(struct songvec *sv, const char *url);
 
-int songvec_delete(struct songvec *sv, Song *del);
+int songvec_delete(struct songvec *sv, const Song *del);
 
 void songvec_add(struct songvec *sv, Song *add);