diff --git a/program/source/structures/concrete/board.c b/program/source/structures/concrete/board.c
index 9d31324..6529458 100644
--- a/program/source/structures/concrete/board.c
+++ b/program/source/structures/concrete/board.c
@@ -52,6 +52,7 @@ void print_board(Kakuro board) {
         }
         putchar('\n');
     }
+    fflush(stdout);
 }
 
 void add_check(Kakuro board, Check * checks, ksize_t index) {
diff --git a/test/blackbox/suites/easy/easy_unset.c b/test/blackbox/suites/easy/easy_unset.c
index fc1c3ce..f208cc2 100644
--- a/test/blackbox/suites/easy/easy_unset.c
+++ b/test/blackbox/suites/easy/easy_unset.c
@@ -16,7 +16,7 @@ TEST easy_unset_one(void) {
     FILE * fp = fopen(get_settings_singleton()->filepath, "rb");
     ASSERTm("COULDN'T OPEN FILE", fp);
     rewind(fp);
-    
+
     Kakuro board = init_kakuro(fp);
     print_board(board);
     fclose(fp);