diff --git a/src/column.h b/src/column.h
index 3bb144c..02d30c4 100644
--- a/src/column.h
+++ b/src/column.h
@@ -7,11 +7,11 @@ extern int grid[2][18][8];
 extern int mask[2];
 extern int spr_y[6];
 
-int new_column ();		// select random column to drop brick into
+int new_column ();			// select random column to drop brick into
 int disp_column (int row, int col);	// update column board
-int new_brick (void);		// choose current/preview random brick
+int new_brick (void);			// choose current/preview random brick
 int rotate_col (void);
-int display_tile ();		// display current column in play (not implemented)
+int display_tile ();			// display current column in play (not implemented)
 int move_horiz (void);
 int move_down (void);