1 files changed, 1 insertions, 0 deletions
diff --git a/balls.h b/balls.h
index 4d070c9..92ae8dd 100644
--- a/balls.h
+++ b/balls.h
@@ -1,6 +1,7 @@
 #include <stdlib.h>
 #include <iostream>
 #include <math.h>
+#include <time.h>
 #include <GL/glut.h>
 #include <oneapi/tbb.h>