diff --git a/board/altera/ep1s40/ep1s40.c b/board/altera/ep1s40/ep1s40.c
index cb75550..c0eca17 100644
--- a/board/altera/ep1s40/ep1s40.c
+++ b/board/altera/ep1s40/ep1s40.c
@@ -29,7 +29,7 @@
 	return 0;
 }
 
-long int initdram (int board_type)
+phys_size_t initdram (int board_type)
 {
 	return (0);
 }