diff --git a/apps/recorder/albumart.c b/apps/recorder/albumart.c
index 7dab0ea187..5acb492412 100644
--- a/apps/recorder/albumart.c
+++ b/apps/recorder/albumart.c
@@ -275,7 +275,7 @@ bool search_albumart_files(const struct mp3entry *id3, const char *size_string,
  * Stores the found filename in the buf parameter.
  * Returns true if a bitmap was found, false otherwise */
 bool find_albumart(const struct mp3entry *id3, char *buf, int buflen,
-                    struct dim *dim)
+                    const struct dim *dim)
 {
     if (!id3 || !buf)
         return false;
diff --git a/apps/recorder/albumart.h b/apps/recorder/albumart.h
index 0f50979a1a..80cacaf5f0 100644
--- a/apps/recorder/albumart.h
+++ b/apps/recorder/albumart.h
@@ -33,7 +33,7 @@
  * Stores the found filename in the buf parameter.
  * Returns true if a bitmap was found, false otherwise */
 bool find_albumart(const struct mp3entry *id3, char *buf, int buflen,
-                    struct dim *dim);
+                    const struct dim *dim);
 
 #ifndef PLUGIN
 /* Draw the album art bitmap from the given handle ID onto the given Skin.