diff --git a/includes/powder.h b/includes/powder.h
index cd118e14d..f21f14206 100644
--- a/includes/powder.h
+++ b/includes/powder.h
@@ -325,7 +325,6 @@ int graphics_WIRE(GRAPHICS_FUNC_ARGS);
 int graphics_ACEL(GRAPHICS_FUNC_ARGS);
 int graphics_DCEL(GRAPHICS_FUNC_ARGS);
 int graphics_GEL(GRAPHICS_FUNC_ARGS);
-int graphics_TRON(GRAPHICS_FUNC_ARGS);
 
 #define UPDATE_FUNC_ARGS int i, int x, int y, int surround_space, int nt
 // to call another update function with same arguments:
@@ -442,6 +441,7 @@ int update_BANG(UPDATE_FUNC_ARGS);
 int update_IGNT(UPDATE_FUNC_ARGS);
 int update_FRAY(UPDATE_FUNC_ARGS);
 int update_REPL(UPDATE_FUNC_ARGS);
+int update_TRON(UPDATE_FUNC_ARGS);
 
 int update_MISC(UPDATE_FUNC_ARGS);
 int update_legacy_PYRO(UPDATE_FUNC_ARGS);