1 files changed, 2 insertions, 0 deletions

diff --git a/3dmath.c b/3dmath.c
index eb9c4a8..ece6f83 100644
--- a/3dmath.c
+++ b/3dmath.c
@@ -1,3 +1,5 @@
+#include "3dmath.h"
+
 #include <math.h>
 
 #define POW2(x) ((x) * (x))