--- cinepaint/lib/player.c
+++ cinepaint/lib/player.c
@@ -474,7 +474,7 @@
 
 void
 gimp_layer_set_name (gint32  layer_ID,
-		     char   *name)
+		     const char   *name)
 {
   GParam *return_vals;
   int nreturn_vals;
--- cinepaint/lib/plugin_main.h
+++ cinepaint/lib/plugin_main.h
@@ -402,7 +402,7 @@
 DLL_API void          gimp_layer_set_mode                  (gint32        layer_ID,
 						    GLayerMode    mode);
 DLL_API void          gimp_layer_set_name                  (gint32        layer_ID,
-						    char         *name);
+						    const char         *name);
 DLL_API void          gimp_layer_set_offsets               (gint32        layer_ID,
 						    gint          offset_x,
 						    gint          offset_y);