diff --git a/src/new_col.c b/src/new_col.c
index 7357939..9261140 100644
--- a/src/new_col.c
+++ b/src/new_col.c
@@ -30,7 +30,7 @@ int disp_column(int row, int col) {
 }
 
 // generate random 3 tile bricks for current and preview
-new_brick {
+int new_brick {
 	for (i = 0; i < 3; i++) {
 		tile_current[i] = randombytes_uniform(5) + 1;	// current piece
 		tile_next[i] = randombytes_uniform(5) + 1;	// next piece